Question

in a dam water level Rises 3 metres in two and a half hours how much will the water level rises in 1 1/4 minutes how long will it take to rise the level 9 metres​

Answer 1

Answer:

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Answer 2

0.025 meters and 450 minutes.

Step-by-step explanation:

Two and a half hours means (2.5 × 60) = 150 minutes

In a dam water level rises by 3 meters in 150 minutes.

So, in one minute the water level will increase by 0.02 meters.

Then in one and one-fourth minutes i.e. 1.25 minutes, the water level will increase by (0.02 × 1.25) = 0.025 m

Again the water level increases by 3 meters in 150 minutes.

Then the water level will increase by 9 meters in (150 × 3) = 450 minutes. (Answer)