169 64 81 30 625 ? 49 50 1296 576 100 70

RRB RPF RPSF SI and CONS Model Papers 1 with solutions

DIRECTIONS (Qs. 51 & 52): Find the missing number

Question : 51 of 120

Marks: +1, -0

Solution:

(a)

√{ 169 } + √ { 64 } + √ { 81 } = 30

√ { 625 } + √ { x } + √ { 49 } = 50 ⇒ x = 324

√ { 1296 } + √{ 576 } + √ { 100 } = 70

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