self
Maths Puzzle
Evaluate : (2.39)2 - (1.61)2
2.39 - 1.61
A. 2 B. 4
C. 6 D. 8
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self Other Question
The banker's discount on a certain sum due 2 years hence is 11 of the true discount.
10
The rate percent is:
A. 11% B. 10%
C. 5% D. 5.5%
What decimal of an hour is a second ?
A. .0025 B. .0256
C. .00027 D. .000126