A car travels a distance of 225 km in 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this car?

Find the values of x and y if a and b are in inverse proportion:

a. 12 x 8

b. 30 5 y

If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350 steps.

From the following table, determine if x and y are in direct proportion or not.

(i)

(ii)

(iii)

If a and b vary inversely to each other, then find the values of p, q, r: x, y, z and l, m, n.

(i)

(ii)

(iii)