Question

and d are in proportion, then
12 In a box, the ratio of the number of red marbles to that of blue marbles is 4:7. Which
of the following could be the total number of marbles in the box?
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Answer 1

Withratios,addallthepartstogethertogetatotal.Inthiscase,itis4redand7blue.

7+4=11.

Therefore,thelowesttotalnumberofmarblesis11.Theanswerwillbeanynumberdivisibleby11.

Hence itis22.

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