Number Series - Logical Reasoning

Find out what should come in place of the Question mark (?) in the following Number Series

Q1 : 63, 63, 50, 50, 37, 37, ?

A. 23
B. 25
C. 24
D. 27

Answer : C

Solution : Each repeated number is Subtracted by 13


Q2 : 2, 6, 18, 54, ?

A. 84
B. 112
C. 146
D. 162

Answer : D

Solution : Each number Multiplication of 3 with previous number


Q3 : 1, 8, 27, 64, ?

A. 86
B. 112
C. 125
D. 146

Answer : C

Solution : Each number is Cubes of 1, 2, 3 . . . serially


Q4 : 7.5, 6.8, 6.1, 5.4, ?

A. 4.9
B. 4.7
C. 4.3
D. 3.9

Answer : B

Solution : Each number is Subtraction of 0.7 from Previous number


Q5 : 0, 6, 24, 60, ?, 210

A. 92
B. 108
C. 120
D. 148

Answer : C

Solution : 0*1*2=0, 1*2*3=6, 2*3*4=24, 3*4*5=60, . . .