Four numbers, when arranged in ascending order, are w, x, y and z. The average of the smallest three numbers is 25.5 while the average of the largest three was 29.5. What is the range of the data?

The distribution of fruit consumption in a sample of 72 seventeen – year – old girls is given in the graph below. Study the graph and answer the questions.

Distribution of Fruit Consumption

How many of these girls ate fewer than two servings per day? 

The least value of n, such that (1 + 3 + 3² + ... + 3ⁿ) exceeds 2000, is-

A shopkeeper allows a discount of 10% on the marked price of an item but charges a sales tax of 8% on the discounted price. If the customer pays ₹ 3,402 as the price including the sales tax, then the marked price is 

By selling 66 metres cloth, a man loses S.P. of 11 metres. What is the loss percent?

The average mathematics marks of two section A and B of class IX in the annual examination is 74. The average marks of Section A is 77.5 and that of Section B is 70. The ratio of number of student of section A and B is:

What will be compound interest on a sum of Rs. 1000 at the rate of interest 10% after 5 years?

At what time between 7 and 8 o'clock will the hands of a clock be in the same straight line but, not together?