The average age of 3 girls is 20 years and their ages are in proportion 3:5:7, the age of youngest girl is (a)8 years 3 months (b)6 years 8 months (c)12 years (d)20 years

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