# Posts by Sapna

Total # Posts: 20

Math
In a school 4/11 of the students are girls.if there are 490 boys, find the number of girls.

Math
solution of a rectangular swimming pool 8m long and 5m wide has 0.5 m wide path around it . find area of path

science
calculate the heat f iodine vapours & solid are 0.031 & 0.055 cal/g respectively. If heat of sublimation f iodine is 24 cal/ g at 200°C .wat is its value at 260°C??

math
Which number of players can be arranged in the shape of square?

math
If a - b , a , a + b are zeros of polynomial x3-3x2 + x + 1 the value of(a+b) is:

maths
integrate x^2/(x^4+a^4) dx

maths --plse help ..sumebudy help me to solve this
Thank you drwls ,

maths --plse help ..sumebudy help me to solve this
On a certain sum, Compound interest is Rs41 and Simple interest is Rs 40. for 2 years. What is the rate p.a.?

maths --plse help me..

maths
if r is to be calculated , then how u can directly say r = .05%

maths
Plse do it again, u have really confuse me

maths
How 20 came

maths
On a certain sum, C.I. is Rs 41 and SI is Rs 40. for 2 years. What is the rate p.a

maths --plse help me..
if a, b, c are in A.P. then solve that b+c-a,c+a-b,a+b-c are in A.P.

probaility.....plse help me.....
From the word HINDUSTAN ===== (a) In how many of these anagrams none of the vowels come together. (b) In how many of these anagrams do the vowels and the consonants occupy the same relative positions as in HINDUSTAN?

maths
Thank You so much..

maths
plse explain me again, i didn't get it..

maths
If ax^2 + bx + c = 0 If a,b,c E R. Find the condition that this equation would have atleast one root in [0,2].

Psychology
This branch of psychology is primarily concerned with what can be readily seen and recorded: (Points : 1) Cognitive psychology Psychoanalysis Moral Development Behaviorism Tiffany feels a sense of fulfillment when she volunteers at the school down the street. She has no ...

Chemistry
-1.4 J