Find the missing term: 10, 20, 40, 70, 110, ? MCQ with Answer and Explanation

Find the missing term: 10, 20, 40, 70, 110, ?
A. 150
B. 160
C. 170
D. 140
Answer: Option B
Solution (By JKSSB Mock Tests)
Differences are +10, +20, +30, +40, so next difference is +50: 110+50=160.

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Practice More Mental Reasoning Questions

Question #1
If FISH is coded as EHRG, how is BIRD coded?
A. AIQC
B. AHQC
C. AHQD
D. AHPC

Correct Answer: Option B


Explanation:
Each letter is shifted backward by 1: F→E, I→H, S→R, H→G; B→A, I→H, R→Q, D→C gives AHQC.

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Question #2
Find the odd one out: 4, 6, 8, 9
A. 9
B. 6
C. 8
D. 4

Correct Answer: Option A


Explanation:
9 is odd while all other numbers are even.

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Question #3
Ravi went 15 km towards south, then turned left and went 20 km, then turned right and went 15 km. In which direction is he from the starting point?
A. South-West
B. South
C. East
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Correct Answer: Option D


Explanation:
He moves south 15 km, east 20 km, then south 15 km. His final position is to the south and east of the starting point, i.e. South-East.

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