RRB Paramedical Staff Nurse Model Paper 9

Question : 41 of 100

Marks: +1, -0

Sachin invests a certain sum at CI at 10% per annum for 2 years. He also invest 1/3 rd less amount at SI at 10.5% per annum. What should be the period of his investment at SI so that the CI earned is only 50% of the SI earned?

3 years
4 years
5 years
6 years

Validate

Solution:

Let the investment at C.I be Rs X
Investment at SI = 2/3 X
CI = 21X/100

SI = 7XT{/}100

21X{/}100 = 50{/}100 * (7XT){/}100

T = 6 years
Answer - 4) 6 years
Explanation:
Let the investment at C.I be Rs X
Investment at SI = 2/3 X
CI = 21X/100
SI = 7XT/100

21X{/}100 = 50{/}100 * (7XT){/}100

T = 6 years

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