SSC CHSL 4 Mar 2018 Shift 3 Paper

Section: General Intelligence

Question : 39 of 100

Marks: +1, -0

The following equation is incorrect. Which two signs should be interchanged to correct the equation?
6 x 5 + 20 ÷ 4 = 31

Solution:

Expression : 6 x 5 + 20 ÷ 4 = 31
(A) : + and ÷
≡ 6 × 5 ÷ 20 + 4 = 31
L.H.S. =

30/20

+ 4 = 5.5 ≠ R.H.S.
(B) : + and x
≡ 6 + 5 × 20 ÷ 4 = 31
L.H.S. = 6 +

100/4

= 6 + 25 = 31 = R.H.S.

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