# jyoti

Popular questions and responses by jyoti
1. ## science

Calculate the % yeild of the reaction if 64 g of NaBH4 with iodine produces 15_g of BI3

2. ## math

4/9of a group of students are girls .if there are 17more boys than girls ,how many students are there altogether

3. ## chemsitry

Which of the following represent potential energy? a)a ball rolling down a hill b) stretched rubber band c) rowing a boat d) wind e) candy bar f) roller coaster at the top of hill

4. ## Math

4) Jack is buying gift bags for his daughter’s 5th birthday party. His budget is between \$20 and \$30. He has a choice of \$2, \$3 and \$4 bags. If he buys \$4 bags he will have \$3 remaining, if he buys \$3 bags he will have \$2 remaining, and if he buys \$2

5. ## math

Mr. Smith buys pencils at Rs 250 per hundred and sells each at Rs 1.75.Findd his loss or profit. David bought 2 dozen eggs for Rs 56. Since 6 of them broke, he incurred a loss of Rs 20 on selling them. What was the selling g price of one egg? Pls help me !

6. ## math

By selling at Rs 77, some 2 1/4% shares of face-value Rs 100 and investing the proceeds in 6% shares of face value Rs 100, selling at Rs 110 a person increased his income by Rs 117 per annum. How many shares did he sell? Two pipes running together can fill

7. ## Science

Cutting of trees on large scale is called

8. ## science

Which has more entropy neon or methane

9. ## math

The angles of a triangle are in the ratio 1:2:3. If its hypotenuse is 12cm, find the volume of the double cone formed by revolution of triangle about its hypotenuse. Pls help me!

10. ## maths

how many discs of diameter 6cm can be stamped from a rectangular sheet of metal mesuring 8cm by 30cm? what area of metal is wasted?

11. ## Maths ch1 real n

Maths ch1 rational number mental maths book class 9 ques 21,23

12. ## Science

In Kjeldhal's method, Conc. H2SO4,NaOH & Boric acid is used to measure the % of nitrogen in a sample. If , in a sample HgCl2 is added , will it interfere the reaction? Accurate conc. of nitrogen will be determined or not?

13. ## math

The weight of a container completely filled with water is 2.25 kg. The container weighs 0.77 kg when it's 0.2 part is filled with water. Find the weight(in kg) of the container when0.4 part of it is filled with water? ABCD is cyclic quadrilateral, AB is

14. ## st xaviers

Find the simple interest on rs 720 from 5th april 2014 to june 17 2015.

15. ## math

32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me

16. ## math

32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me

17. ## computer

program in c++ to convert fahrenheit into centigrade

18. ## science

what is scorpius

19. ## maths

simple interest and compound interest on what sum will the compound interest at 10% per annum for 3 years compounded annually be Rs 331?

20. ## math

Carl hired 6 people to work in his shipping department for a week at 12 hours a day. However, after working only 6 hours on the third day, the work was completed. How many hours of wages does Carl owe to the workers?

21. ## Anthropology

can someone tell me some fossil, DNA, and archeological evidences of multiregional and out of africa theories?

22. ## social studies

material used for making sun temple &lead to preserve it.

1. ## maths

1) initial momentum =mv Mass =1600 kg Velocity =30m/sec =1600 *30=4800 kg m/s 2)final momentum=mv If it is retarding then the final velocity = 0m/Sec Mass =1600kg =mv 1600*0=0 kg m/sec 3)rate of change of momentum =m1u1 +m2u2=m1v1+m2v2 U = initial velocity

posted on September 6, 2019
2. ## maths

Playing chess

posted on June 8, 2018
3. ## physics

Plz sand kro ish ouestion ka answar

posted on February 25, 2018
4. ## maths

741

posted on October 28, 2017
5. ## math

3/4

posted on May 17, 2017
6. ## Physics

A1/A2=1/6 H = I2RT H=V2T/R R=PL/A H1/H2=1/6

posted on March 3, 2017
7. ## chemistry

Describe the procedure for preperation 100 ml of a 0.10 M NaOH solution from 1.0 NaOH show all the steps of calculation

posted on November 8, 2016
8. ## chemistry

Answer is nearly equal to 0.2

posted on October 11, 2016
9. ## statistik

0.102

posted on September 23, 2015
10. ## chemistry

kcl

posted on February 28, 2013
11. ## math

By substitution Repalce the value of x in first equation: 4.4 y + 4y = 6 8.4y = 6 y = 6/8.4 = 1/1.4 Multiply both numeratoy and denomenator by 5 to get the answer 5/7 y = 5/7 To find x: Replace y as 5/7 in the first equaton: x + 4y = 6 x + (4 x 5/7) = 6 x

posted on July 9, 2010