Instructions

For the following questions answer them individually

Question 62

In a schoolÂ $$\ \frac{1}{10}\ $$of the boys are same in number asÂ $$\ \frac{1}{4}\ $$of the girls and$$\ \frac{5}{8}\ $$of the girls are same in number as $$\ \frac{1}{4}\ $$of the boys. The ratio of the boys to girls in that school is

Question 63

The average of 8 numbers is 27. If each of the numbers is multiplied by 8, find the average of new set of numbers.

Question 64

In a prep school, the average weight of 30 girls in a class among 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of all the students in the class ?

Question 65

The average age of a husband and his wife was 23 years at the beginning of their marriage. After five years they have a one-year old child. The average age of the family of three, when the child was born, was

Question 67

A shopkeeper purchased a TV for Rs.2,000 and a radio for Rs.750. He sells the TV at a profit of 20% and ther radio at a loss of 5%. The total loss or gain is

Question 68

A container containing 400 litres of oil lost 8% by leakage. Oil left in the container is

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