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Question

Pls help in (b).
If I take C as1,2,3 and 4 then pamela’s age is 17years,21, 25 & 29 respectively &their total age 45,55,65,75respectively. Could you please explain why I should take C as4 because the correct answer given is 75.

Thanks in advance.

Answer

4C + 13 < 30

4C < 17

The largest c can be is 4.

Technically, what you said is correct. their total age could be 4 different numbers, based on whatever c is. I would say that this question is poorly phrased, it should be “what could their oldest total age be?”

In this case, I would still have put 75, because the closest number to the limit (4c <17) would be 4c = 16.

0 Replies 1 Like ✔Accepted Answer

your answer is correct

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