(444 \div 12)^2 - (?)^2 = (12)^2

RRB Group D Model Paper 7 with solutions

Question : 81 of 100

Marks: +1, -0

(444 ÷ 12)^2 - (?)^2 = (12)^2

Solution:

(3)

(37)^2 – (?)^2 = (12)^2

(?)^2 = (37)^2 – (12)^2

(?)^2 = 1225

? = 35

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