Directions: The Pie chart given here represents the domestic expenditure of a family in per cent. Study the chart and answer the following questions if the total monthly income of the family is ₹ 33,650.

A: Expenditure on food

B: Expenditure on house-rent

C: Expenditure on entertainment

D: Expenditure on education and maintenance of children

E: Medical and miscellaneous expenditure

F: Deductions towards provident fund

The house rent per month is :

What should come at place of question mark (?) in the following number series?

1.7 5.4 19.2 80.8 409 ?

A contractor undertakes to finish a certain work in 124 days and employed 120 men. After 64 days, he found that he had already done 2/3 of the work. How many men can be discharged so that the work may finish in time ?

The least number, by which 1944 must be multiplied so as to make the result a perfect cube is 

The smallest number that must be subtracted from 1000 to make the resulting number a perfect square is 

Two buses travel to a place at 45 km/hr and 60 km/hr respectively. If the second bus takes 5½ hours less than the first for the journey, the length of the journey is:

Simplify : $$ {(2x)^{2}-(2y)^{2}-(4x)^{2}}$$

If N:38∷ 3:57, Find N.