RRB RPF RPSF SI and CONS Model Papers 2 with solutions

Question : 20 of 120

Marks: +1, -0

A three-digit number 4a3 is added to another three-digit number 984 to give the four digit number 13b7 which is divisible by 11. Then the value of (a + b) is:

Validate

Solution:

(d)

\table 4,a,3;9,8,4\

\ov {\table 13,b,7}

∵ 13b7 is exactly divisible by 11.

∴ b = 9∴ a = 1

∴

a + b = 9 + 1 = 10

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