Find the next term: 1, 8, 27, 64, 125, ? MCQ with Answer and Explanation

Find the next term: 1, 8, 27, 64, 125, ?
A. 256
B. 196
C. 216
D. 343
Answer: Option C
Solution (By JKSSB Mock Tests)
The terms are cubes of natural numbers: 1^3, 2^3, 3^3, 4^3, 5^3. Next term = 6^3 = 216.

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Practice More Mental Reasoning Questions

Question #1
In a certain code language, 'kew xas huma deko' means 'she is running there'; 'xas nuti muki' means 'is she?'; 'deko muki kasi' means 'there is a girl'. Which word in that language means 'girl'?
A. xas
B. kasi
C. muki
D. deko

Correct Answer: Option B


Explanation:
From first and second, 'xas' = is or she. From second and third, 'muki' = is or there? First has 'kew xas huma deko' = she is running there. Second 'xas nuti muki' = is she? Third 'deko muki kasi' = there is a girl. Common first and third 'deko' = there. Common second and third 'muki' = is. Then from third remaining 'kasi' = girl (a is ignored or 'a' not coded).

This question belongs to: Reasoning Mental Reasoning
Question #2
Find the missing term: 6, 13, 28, 59, ?
A. 122
B. 120
C. 118
D. 124

Correct Answer: Option A


Explanation:
Pattern: 6×2+1=13, 13×2+2=28, 28×2+3=59, so next is 59×2+4=122.

This question belongs to: Reasoning Mental Reasoning
Question #3
What is the angle between the hands of a clock at 3:30?
A. 105°
B. 75°
C. 60°
D. 90°

Correct Answer: Option B


Explanation:
At 3:30, hour hand = 3×30 + 30×0.5 = 105°, minute hand = 180°. Difference = 75°.

This question belongs to: Reasoning Mental Reasoning