Friday
April 18, 2014

Posts by TUHITUHI


Total # Posts: 109

maths
3 and 5 of spade, king and queen of club , 7 and 9 of diamond and ace of heart are removed (i) find the probability its a red card (ii) find the probability its neither king nor queen (iii) find the probability its a face card (iv) That its a black coloured card (v) that its a...

maths
Some cards are numbered from 1 to 30. They are reshuffled and arranged. Find the probability that it will be an odd number

maths
A plane has to crash on the field which is 2km by 1.5km . There is a lake in the corner whose dimensions are 900m by 300 m (i) what is the probability that the plane will crash in the lake (ii) what is the probability that will crash other than lake.

maths
factorise ? a(a+b)^2 - 2ab(a+b)

maths
Simplify 3*3 to the power root 40 - 4* 3 to the power root 320 - 5 to the power root 5?

physics
a balloon is rising up with an acceleration of 25meter per second a body is dropped from the balloon when its upward velocity is 300meter per second. what are there values of velocity and acceleration of the body at the instant it is dropped?

physics
on turning a corner a motorcyclist rushing at 44 meter per second. find a child on the road 100m away. he applies the brake so as to stop motorcycle within 1m of the child. calculate the time required to stop?

physics
a balloon is rising up with acceleration of 25m per hour second square a body is dropped from the balloon when its upward velocity is 300m/s what are the values of velocity and the acceleration of the body at the instant it is dropped ?

physics
on turning a corner a motorcyclist rushing at 44 m/s. finds a child on the road 100 m away. he applies the brake so as he stops the motorcycle within 1m of the child. calculate the time required to stop?

maths
if a/b+b/a = 1,then a^3+b^3 =????????????????????

maths
if a/b+b/a= -1,then a^3-b^3 = ????????

maths
what is pure surd of 3/4root32?

maths
express -108a^4b^3 whole cube root in the simplest form?

maths
express a^8b^6c^7 whole root 4 in the simplest form??

maths
If a= 3 +2 root 2 , then find the value of a^2 - 1/a^2 ????

maths
if a=3+2root2 then find the value of a square- 1by a square?

maths
if 3^x = 5^y = 75^z show that z= xy/2x +y

maths
if x=2^1/3 + 2^2/3 show that x^3-6x =6

maths
prove that: 1/1+x^b-a + x^c-a + 1/1+x^a-b +x^a-c = 1

maths
prove that : 3^-3 * 6^2 * root 98 divided by 5 ^2 * cube root 1/25 * 15 ^-4/3 * 3^1/3 equals to 28 root 2

maths
prove that : 3^-3 * 6^2 * root 98 / 5^2 * cube root 1/25 * 15^-4/3 *3^1/3 is equal to 28 root 2

maths
prove that : 3^-3 * 6^2 * root 98 / 5^2 cube root 1/25 *(15)^-4/3 *3^1/3

maths
prove that : 2^n + 2^n-1 / 2^n+1 - 2^n = 3/2

maths
root over 3+2*root2 value is ????

math
Sqaure root 3-2root2??

maths
What is the value of whole root 3+2 root 2 equals to ????

maths
Positive square root of 7+root 48 is ????

maths
13-a*root 10 whole root = root 8 + root 5 then a equals to ???

maths
Simplify 3-2*root2 of whole root ??

maths
how to calculate 36^6/7 ???

math
If x=12 and y=14 .Find the value of (x+y)^x/y ????

maths
7z-2[3(x-2y)-4{2z-(2y-3y-3x-5z)}]

maths
on selling a bag for rs.704, a shopkeeper suffers a loss of 12% at what price should he sell it to gain 7.5%

maths
if Arvind cycles 10km/hr ,he reaches the school late by 4min,/if he cycles 12km/hr,he reaches the school early by 2min,find the distance of the school from his home.

maths
the perimeter of a rectangle is 340 cm.if its length is decreased by 10% and breadth is decreased by 20% .we get the same perimeter.find the length and breadth of the rectangle.

maths
factorise 15a^2b^2-20ab+8

maths
if 8 labourers can earn rs.9000 in 15 days.how many laboures can earn rs. 6300 in 7 days?

maths
in an election .there were only two candidates. the winner was polled 53% votes and won by 9600 votes. find the total no. of votes polled.

maths
if x and y vary inversely and x=18 when y=8,find x when y=16

math
A metalic sheet of rectangular shape with 48m*36m from each of it corner a square is cut off so as to make an open box. if length of each square length is 8m find the volume of the open box ????

maths
Divide rs 13.26 between A,B and C , so that B's share is twice the share of A and A's share is 1/3 of C's share?????

maths
I bought a certain number of apples at 4 for 6 paise and 3/5 of that number at 3 for 6 paise by selling them at 16 for rs.30p. I gained 24 paise.. How many apples did I buy????

maths
A man's age is 4 times the combined age of a two sons. One of whom is 3 times as old as the other. In 24 years their combined ages will be 12 year less than their father's age . Find their respective age ????

maths
A sum of rs76.50 was pain in 50,25 and 10 paise coins. The number of 10p coin used was four times a number of 25p coin and 10 times of 50p coins how many were there of each ?????

maths
The price of 13m cloth is as much less than rs.50 as the price of 27m exceeds rs.29. Find the price per meter?????

maths
DIVIDE X^6 - 7X^3 - 8 BY THE PRODUCT OF X+1 AND (X^2 + 4) ???????

maths
DIVIDE X^6 -7^3 -8 BY THE PRODUCT OF X+1 AND ( X^2 +4) ?????

maths
factorize -> 3a^2 +6a^2 x^2 - 3a^3 x ????

maths
the difference between the two selling prices of a shirt at profits of 4% and 5% is rs, 6.find the c.p. of the shirt and 2 s.p. of the shirts?

maths
vinit sold a watch to alex at a gain of 12%and alex sold it to Priya at a loss of 5%. if Priya paid rs.1330 for it,how much vinit pay for the watch?

MATHS
A cylindrical water tank of diameter 1.4m and height 2.1m is being feed by a pipe of diameter 3.5cm through which water follows at the rate of 2m/per second . In how much time the tank will be filled ???

maths
The area of 3 adjacent faces of cuboid are x,y and z . If the volume is V , Prove that V^2 = xyz ???

maths
A cylindrical vessel without a lid is made from a sheet of metal . Find the area of the metal required if the length of the vessel is 35cm and its diameter is 28cm ????

maths
a cube of edge 10cm is completly inversed in a rectangular trough truck with height 40cm breadth 25cm containing water to a height of 30cm . what will be the height after the immersion of the cube ????

maths
A Cuboid dimension 14cm*8cm*7cm is completely emerged in cuboid trough with side 28cm containing water 20 cm.what will be the height of water after emerging?

math
by selling 90 computer a shopkeeper gains the amount which is equal to the selling price of 10 computer find the profit percent ? had he purchased them for rupees 30000 each what would have been the selling price of a computer ??

math
a fruit seller buys 100kg apple at the rate of rs 20 per /kg . He sold 40 kg at a loss of 7%.At what price should we sell the remaining apple to make a profit of 15% on the whole transaction ??

math
the value of a piece of land is increased by 20 percent if now it worth 15 lac ,what is the originalprice of the land

math
by selling an article for rs.1200 the shopkeeper lost 10 percent .at what price he have sold it to gain 10percent.

math
maria bought two fans for rs.3605 .she sold one at the profit of 15% and the other at a loss of 9%. if maria got the same amount for each fan ,find the cost price of each fan ??

math
maria bought two fans for rs. 3605. she sold one at the profit of 15% and the other at the loss of 9%. if maria got same amount for each fan ,find the cost price of each fan ??

math
prove that a^2+b^2+c^2-ab-bc-ca is always non negative for all the value of a' b and c

math
if a+b=10 and ab=16.find the value of a^2-ab+b^2 and a^2+ab+b^2

math
the distance between two stations is 300km. two trains start simultaneously from these stations and move towards each other ,the speed of one them is 7k/hr more than the other . if the distance between them after 2hours of their start is 34km ,find the speed of each train ????

math
an altitude of triangle is 5/3rd of the length of its corresponding base if their altitude be increased by 4cm and the base is decreased by 2cm, the area of the triangles remain the same. find the base and altitude of triangle ?????

math
the age of somya and yaseen are in the ratio 5:7.if somya were 9 years older and yaseen is 9 years younger one,find thier present age?

math
Sanjeev is twice as old as his son.If after four years he will be four times as old as his son was 9 years ago ,how old is each now ??

math
Sanjeev is twice as old as his son.If after four years he will be four times as old as his son was 9 years ago ,how old is each now ??

math
x^2 + 1/x^2 = 47. find the value of x+ 1/x and x- 1/x

math
if x^4 + 1/x^4 =42 .find x+1/x

math
what must be added to each of the following expressions to make it a whole square (i) 4x^2 - 12x + 7 (ii) 4x^2 - 20x + 20

math
if x-2 is a factor of polynomial x cube - 2ax square + ax - 1 what is the value of a ??

math
in an examination there are 180 questions , 4 marks is given for each correct answers and 1 marks is subtracted for each wrong answers . if a boy scores 220 marks find the no of correct and wrong answers ???

math
two coins are thrown at random .what is the probability of getting a a head and tails in three pros ??

math
three coins are tossed simultaneously ,what is the is the possible outcome of getting two head one tail ???

math
when a dice is thrown randomly .What is the probability of getting 5 ??

math
Two friends decide to cycle to a picnic spot the first person cycles 5 and a 1/2 km/hour and 2nd cycles 6 and a3/4 km/hour to make up for being slow the first person starts out two and half hour earlier after how much time and distance will the 2nd person catch up with the fir...

math
A mother is 4 times as old as her son and 5 times as old as her daughter .When the son is three times as old as he is now, the mother's age will be 3 year's more than twice the daughter's age then what are there current ages??

math
two numbers differ by 11 and 1/3rd of the greater exceeds 1/4th of the other by 7 . find the number ???

math
a an sold a bicycle for an amount which was greater by rs. 988 than half price he paid for it an made a profit of rs. 300 how much did he sell the bicycle for???

math
Mr. Jain is 3 year older than Mrs. Jain .One fifth of Mr Jain's age is 3 year's more than 1/8 of Mrs. Jain's age how old ARE Mr. and Mrs. Jain ???????????

science ( biology)
What are the various method a farmer should do to increase his land fertility by spending less money ???

math
.009/.004=root over.027/.008 -1 ?

math
A no consists of 2 digits whose product is 18 when 27 is subtracted from the no the digit inter change find the number

math
A square whose side is 2m has it's corner cut away so as to form a octagon with all sides equal find the length of each side of octagon and also find the area of the octagon?

math
What will be the perimeter of a rectangle it's length is 3 times it's breadth and he root of the diagonal is 8* root over 10cm ?????

math
if 27 to the power k is equal to 9 divided by 3 to the power k.find the value of 1 by k to the power 2

math
the middle digit of a no between 100 and 1000 is 0 the sum of the other digit is 11. if the digit be reversed the no so formed exeed the original no by 475 find the no..

math
Show that ( a1/3 - b1/3) ( a2/3 +a1/3 * b1/3 + b2/3 )?

physics
how can we see image of an object? explain the mechanism?

physics
how presence of two eyes help in binocular vision in our daily tasks?

math
ajay gets 20 percent less marks than that of vatsals marks. by what percentsvatsals marks is more than Ajays marks

math
Mala buys x pens for rs.20 if x=4,what is the cost of each pen?

math
two third of4x-1 - (4x-1-1-3x/2=x-7/2

math
The distance between Delhi and Meerut is 75km . Two trains at a speed of 100km/hr and 80km/hr leave the two stations at 8am towards each other. At what time they will pass each other?

math
Prove that , if the difference between a three digit number in the form of a0b that is digit at ten's place is 0 and the sum of it's digits is divided by 99, we always get the number equal to a?

math
2/3(4x - 1) - (4x- 1-3x/2)= x-7/2. Find the value of x ?

math
Divide rs.500 between rita and seema such that 1/3 share of rita and 1/2 share of seema are equal?

math
find the value of a and b , so that 10x to the power 4 + 17x to the power 3 - 62x to the power 2 + 24x -bx -5 +a,is divisible by 2x to the power 2 + 7x - 1 ?

math
16 to power 1/4 divided by 16 to the power 1/2 ?

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