There are 222 red balls in a basket . A boy takes out 6 red balls from it and replaces them by 12 white balls . He continues to do so , till all red balls are replaced by white balls. Then the number of white balls put in the basket is ?

Give chapter 5 lines and angles own questions for board exams 

Find the following percentage value:

1) 15% of 250.

Find the angle which is equal to its supplement.

Find the breadth of the rectangle whose length is 70 cm and perimeter 200 cm.

Convert 1 gallon into liters.

a. 3.05 liters

b. 3.78 liters

c. 4.05 liters

d. 4.78 liters