Question

Find the value of a in each of the following ratio 12 : 21 = 4: a

3,
4,
7,
8

Answer 1

7 is the correct answer..

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Answer 2

Answer:

7.

Step-by-step explanation:

12:21 = 4:a

12/21 = 4/a

a = 4×21/12

a = 84/12

a = 7.

Hope it helps you.