Question

80 litres of diesel is required to travel 800 km using a 800 cc engine. If the volume of diesel required to cover a distance varies directly as the capacity of the engine, then how many litres of diesel is required to travel 1000 kms using 1200 cc engine ?
A) 120 lit
B) 140 lit
C) 110 lit
D) 150 lit

Answer 1

80 litres of diesel is required to travel 800 km using a 800 cc engine. If the volume of diesel required to cover a distance varies directly as the capacity of the engine, then how many litres of diesel is required to travel 1000 kms using 1200 cc engine ?
A) 120 lit
B) 140 lit
C) 110 lit
D) 150 lit

=> Option D

Description:

To cover a distance of 800 kms using a 800 cc engine, the amount of diesel required = 80 litres.

=> the amount of diesel required to cover a distance of 1000 kms = 1000 x 80/800 = 100 litres

However, the vehicle uses a 1200 cc engine and it is given that the amount of diesel required varies directly as the engine capacity.
i.e., for instance, if the capacity of engine doubles, the diesel requirement will double too.

Therefore, with a 1200 cc engine, quantity of diesel required = 1200/800 x 100 = 150 litres.

Answer 2

Answer:

150

Step-by-step explanation:

if 800 km uses 80 litres, then 1000 km uses 100 km(80/800*1000)

volume of diesel varies directly to capacity of engine, then

Volume=k*capacity('k' is constant)

100=k*800,  k=1/8

(Note: we found 100 litres for 800 cc only)

Now for 1200 cc

Volume=k*capacity

volume=1/8*1200

volume=150