RRB RPF RPSF SI and CONS Model Papers 6 with solutions

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Directions (Q. 41–42): In each of the following questions, some equations are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation.

Question : 41 of 120

Marks: +1, -0

If 235 = 38 and 452 = 45, then 345 = ?

Validate

Solution:

(4) As,

235=(2)^{2}+(3)^{2}+(5)^{2}

=4+9+25=38

and

452=(4)^{2}+(5)^{2}+(2)^{2}

=16+25+4=45

similarly,

345=(3)^{2}+(4)^{2}+(5)^{2}

=9+16+25=50

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