x and y vary inversely. When x = 15, then y = 6. What will be the value of y when x = 9?

A car is travelling at an average speed of 60 km per hour. How much distance will it cover in 1 hour 12 minutes?

Rashmi types 510 words in half an hour. How many words would she type in 10 minutes?

x and y vary directly. When x = 3, then y = 36. What will be the value of x when y = 96?

Fill in the blanks.

(i) If 3 persons can do a piece of work in 4 days, then 4 persons can do it in……days.

(ii) If 5 pipes can fill a tank in 144 minutes, then 6 pipes can fill it in ……minutes.

(iii) A car covers a certain distance in 1 hr 30 minutes at 60 km per hour. If it moves at 45 km per hour, it will take……hours.

(iv) If 8 oranges cost Rs. 20.80, the cost of 5 oranges is Rs……

(v) The weight of 12 sheets of paper is 50 grams. How many sheets will weigh 500 grams?