19. : In how many time will a
sum become four times of
itself at the rate of 15% per
annum.
O a) 20 years
O b) 30 years
O c) 40 years
O d) 50 years
Answers
Answered by
0
Answer:
20 years .
But approx 20 years not confirm
Answered by
0
Answer:
Approximately 30 years
Step-by-step explanation:
15% of the sum is completed in 1 year
1% of the sum is completed in 1/15 year
400% of the sum is completed in = 1/15×400 years
10
= 26 ___ years
15
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