What sum of money at compound interest will amount to Rs 32000 in 3 years at the rate of interest 20...........

Quantitative Aptitude ( CCS) Compound Interest

What sum of money at compound interest will amount to Rs 32000 in 3 years at the rate of interest 20% in first years, 16 (2/3)% in second year and 14 (2/7)% in third year.

Rs 18,000

Rs 20,000

Rs 22,000

Rs 25,000

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Explanation:

1^st year = 20% =1/5————-5 ————-6
2^nd year = 16 (2/3)= 1/6——-6————–7
3^rd year = 14 (2/7) =1/7 ——-7————–8
———————————-= 210———336 on simplifying = 5:8
r=(8-5)/5*100=60%
160%=32000
100%=20000