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Comparing Heights

A rocket weig...

Question

A rocket weighs 16000 kg. Its weight reduces by 800 kg during each hour of space travel. The weight of the rocket after 't' hours of space travel is

A

(16000 + 800t) kg

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B

(16000 - 800t) kg

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C

(800t -16000) kg

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Solution

The correct option is B (16000 - 800t) kg
Initial, weight of rocket = 16000 kg
Reduction in weight each hour = 800 kg

Weight reduced in "t" hours = 800t kg

∴ Weight of the rocket after "t" hours = 16000 - 800t kg

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