Question

2/5 = 6/ = 10/30 = 14/


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Answer 1

6/15.

14/42.

Explanation:

2/5 = 6/x

Cross multiply:

2x = 5*6

x = 15

Similarly:

10/30 = 14/x

10x = 30*14

x = 420/10

x = 42.