If the oil is putting in the machine at the rate of $1000 l$ in $1 h r$ , then how much time will it take to fill the $25$ tonnes of oil capacity machine, taking the proportional relationship between oil filling rate.

25 h r s

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40 h r s

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\frac{1}{40} h r s

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\frac{1}{25} h r s

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Solution

The correct option is A $25 h r s$
One hour taken to fill $= 1000 l$
$1 t o n n = 1000 l$
$25 t o n n e s = 1000 \times 25 = 25000 l$
For $1000 l$ , time required $= 1 h o u r$
So, for $25000 l$ , time required $= \frac{1}{1000} \times 25000 = 25 h o u r s$

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