Question

124:64::123:27::126:216::122:?

Answer 1

the answer is eight and for solution check the attachment

Answer 2

Case 1:

In 124
4 is in one's place

4³= 64

Second ratio is cube of one's digit= 64

124: 64


Case 2;

In 123
3 is in one's place

3³= 27

Second ratio is cube of one's digit=27

123: 27


Case 4:

In 122
2 is in one's place

2³= 8

Second ratio is cube of one's digit= 8

122: 8

Hence, the missing ratio is 8.

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Hope this will help you...