Write true or false.

(i) 15∶30 ∷ 30∶40
(ii) 22∶11 ∷ 12∶6

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Solution

(i) False because 15∶30 = 1 : 2 and 30∶40 = 3 : 4.
Thus in simplified form the two ratios are not equal.

(ii) True because 22∶11 = 2 : 1 and 12∶6 = 2:1
Thus in simplified form the two ratios are equal.

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