Mental Ability MCQs

Number Series Questions with solutions MCQs

1. Find the next number in the given series: 1, 4, 12, 30, 68, ......

A

140

B

154

C

146

D

150

Number Series Veterinary Pharmacist 2024
Correct Answer : C
Explanation :

Pattern: next = current*2 + 2n (n = 1,2,3...). 1*2+2=4; 4*2+4=12; 12*2+6=30; 30*2+8=68; Next: 68*2+10 = 146.

Correct Answered :

Wrong Answered :

2. Find the next number in the given series: 6, 4, 5, 11, 39, ...

A

189

B

196

C

195

D

190

Number Series Veterinary Pharmacist 2024
Correct Answer : A
Explanation :

Pattern: t_{n+1} = t_n * n - (n+1) for n starting at 1: 6*1-2=4; 4*2-3=5; 5*3-4=11; 11*4-5=39; Next: 39*5-6 = 195-6 = 189.

Correct Answered :

Wrong Answered :

3. What number should come next in the given series? 7, 14, 10, 20, 16, 32, ......

A

60

B

26

C

64

D

28

Number Series Veterinary Pharmacist 2024
Correct Answer : D
Explanation :

Pattern: ×2, -4, ×2, -4, ×2, -4 ... So after 32 -> 32-4 = 28.

Correct Answered :

Wrong Answered :

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