Prostuti360°Prostuti360°
Log in

WBCS Preliminary Examination 2019 — General Studies · Question 169 of 200

Q169
ArithmeticNumber Series & Progressions
Given the numbers in three groups of circles — (93, 27, 63, 3), (79, 38, 37, 4), and (67, 16, 42, ?) — following the same relationship in each group, find the missing number.
  1. a.5
  2. b.6
  3. c.8
  4. d.9

Answer: (D) 9

In the first group, $93-63-3=27$; in the second, $79-37-4=38$. Applying the same relationship to the third group, $67-42-x=16$, gives $x = 67-42-16 = 9$.

Q168 Whole paperQ170