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  3. 42 : 20 : : 64 :

. 42 : 20 : : 64 :

A: 31

B: 32

C: 33

D: 34

Best Answer

Explanation:

The number 42 is the sum of 2 plus twice the number 20.

The relation is,

2x+2=64

2x=64-2

2x=62

x=62/2

x=31

Therefore,

2x+2=64

2x=64-2

2x=62

x=62/2

x=31

Final answer:

Hence, 42 : 20 : : 64 : 31.

 

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