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Primary 6 Problem Sums/Word Problems - Try FREE

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Question

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The total number of trees in forest X and forest Y was 1290.

36 trees from forest X and 20% of the trees from forest Y were cut down to build a factory.

As a result , the ratio of the number of trees in forest X to that in forest Y became 7:1.

(a) Find the number of trees in forest X at first.

(b) If 5:1 is the ratio of the number of trees in forest Z to that which forest Y had at first, find the number of trees in forest Z.

 

 

Notes to students:

  1. If the question above has parts, (e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12

 

The correct answer is : 1100,950
(a)____, (b)_____