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A.CHild jumping rope can jump at a speed of 280 revolutions every two minutes what is the number of revolutions the child can jump in 3.5 minutes

User Chris Dale
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1 Answer

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the number of revolutions the child can jump in 3.5 minutes is 490 .

Explanation:

Here we have , A child jumping rope can jump at a speed of 280 revolutions every two minutes . We need to find what is the number of revolutions the child can jump in 3.5 minutes . Let's find out:

According to question , A child jumping rope can jump at a speed of 280 revolutions every two minutes , So in one minute Number of revolutions is :


(280)/(2)


(140(2))/(2)


140

Now , the number of revolutions the child can jump in 3.5 minutes :


140(3.5)


490

Therefore , the number of revolutions the child can jump in 3.5 minutes is 490 .

User FloIancu
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