Question: In what time a sum of money double itself at 3% per annum simple interest?
Options:
(A) 33 1/8%
(B) 33 1/3%
(C) 83 1/3%
(D) 33 4/3%
(E) 73 1/3%
Ans: (B)
CoT: P = (P*3*R)/100
R = 33 1/3%
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Question: 49 members attended the party. In that 22 are males, 27 are females. The shake hands are done between males, females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are possible?
Options:
(A) 66
(B) 291
(C) 26
(D) 29
(E) 11
Ans: (A)
CoT: If only 12 people shaked their hands, then total hand shakes are 12C212C2 = 66
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Question: In what time a sum of money double itself at 3% per annum simple interest?
Options:
(A) 33 1/7%
(B) 33 1/3%
(C) 33 1/2%
(D) 33 7/3%
(E) 33 5/3%
Ans: (B)
CoT: P = (P*3*R)/100
R = 33 1/3%
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