Gate
Exam
Numerical Ability
How many times in a day, the hands of a clock are straight?
A. 22
B. 24
C. 44
D. 48
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Gate Other Question
How many times do the hands of a clock coincide in a day?
A. 20
B. 21
C. 22
D. 24
If a - b = 3 and a2 + b2 = 29, find the value of ab.
A. 10
B. 12
C. 15
D. 18