A) 21: 28 : 23
B) 26 : 20
C) 31 : 27 : 21
D) None of these
Correct Answer: A
Solution :
[a] Let the investments by A, B, C during 5 yr be Rs. 5x, Rs. 7x and Rs. 6x, respectively. Then, their investments during 2nd year are (126% of 5x), (120% of 7x) and (115% of 6x) i.e., \[\left( \frac{126}{100}\times 5x \right):\left( \frac{120}{100}\times 7x \right):\left( \frac{115}{100}\times 6x \right)\] = 630 : 840 : 690 i.e., 21 : 28 : 23 |
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