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Four number-pairs have been given, out o...

Four number-pairs have been given, out of which three are alike in some manner and one is different.

A

`39:270`

B

`31 : 214`

C

` 21:154`

D

`37: 256`

Text Solution

Verified by Experts

The correct Answer is:
C
`(39xx7)`-3=270
`(31xx7)`-3=214
`(37xx7)`-3=256
But.
`(21xx7)`-3=144(Not 154)
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