Tom and Jim each have some books after Jim borrowed 20% of Tom’s box the number of books jim owned was increased by 15% to 23, how many books did tom have at first?

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Step-by-step explanation:

15

Step-by-step explanation:

For Jim,

His story books were increased by 15% to 23, then his original number is 100% and the final number is 100% + 15% = 115%.

Use the formula: Whole = Part ÷ Percent

Jim's original number: 23 ÷ 115% = 20

Thus, the given number: 23 – 20 = 3

For Tom,

20% of his original number is 3.

Thus, Tom's original number: 3 ÷ 20% = 15

So the answer is 15.

the answer is 0.5 mpm

step-by-step explanation:

the line goes half way through the square each time (which is 0.5 or half of course) so that would mean its 0.5 mpm.

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