Question

If 15 burners consume 90 cubic metre of gas in 2 hours how much 9 burners consume at the same time

Answer 1

Answer:

Step-by-step explanation:

15 B consumes = 90 m3

1 B consumes = 90/15

9 B will Consume = 90/15x9 = 54 m3

Answer 2

9 burners consume 54 cubic cm in 2 hours

Step-by-step explanation:

Case 1:

No.of burners = 5

Volume of gas = 90 cubic m

Time = 2 hours

Case 2:

No. of burners = 9

Time = 2 hours

So, ATQ

$\frac{15 \times 2}{90}=\frac{9 \times 2}{x}\\\\x=\frac{9 \times 2 \times 90}{15 \times 2}\\x=54$

Hence 9 burners consume 54 cubic cm in 2 hours

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