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In the air talent show in the eve of ind...

In the air talent show in the eve of independence day 90 aircraft (only Sukhoi and Mig - 21) participated, It is known that for everyone hour flight a Sukhoi and a Mig - 21 consume 2 litres and 3 litres of fuel respectively. The price of fuel for Sukhoi is `$10` per litre and price for the fuel of Mog - 21 is `$15` per litre. Thus all the aircrafts accounted `$3050` for the fuel in one hour show. The number of Sukhoi planes is :

A

20

B

30

C

40

D

50

Text Solution

Verified by Experts

The correct Answer is:
C
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