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Question

# It rained 250 mm in the last 5 days. How many centimetres of rain will fall in a month of 31 days, assuming that the rain continues to fall at the same rate?

A
155 cm
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B
1,550 cm
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C
15.5 cm
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D
1.55 cm
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Solution

## The correct option is A 155 cmAccording to the given question, the measure of rain in 5 days is 250 mm. The measure of rain in one day = 250/ 5 = 50 mm Therefore, the measure of rain in one month, that is, 31 days = 50 × 31 = 1550 mm To change from mm to cm, we need to divide 1550 by 10 (as 1 cm = 10 mm) =155010 = 155 cm Thus, the measure of rain in one month, which is 31 days, will be 155 cm.

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