if a money is lent at simple interest , then the
1.money gets double in 5 years if the rate of interest is 50/3%
2.money gets doubled in 5years if the rate of interest is 20%
3.money becomes four times in10 years if it gets doubled in 5 years
A. 1 AND 3 ARE CORRECT
B. 2 ALONE IS CORRECT
C. 3 ALONE IS CORRECT
4. 2 AND 3 ARE CORRECT
Answers
Answer:
Consider the following statements. If a sum of money is lent at simple interest, then the
(I) money gets doubled in 5 yr. if the rate of interest is 1623%.
(II) money gets doubled in 5 yr, if the rate of interest is 20%.
(III) money becomes four times in 10 yr, if it gets doubled in 5 yr.
A) I and III are correct
B) II alone is correct
C) III alone is correct
D) II and III are correct
Correct Answer:
B) II alone is correct
Description for Correct answer:
Let the sum of money lent be Rs.P.
Then,
I. SI received after 5 yr
=P×50×53×100=56P
Amount after 5 yr
=P+56P=11P6
Therefore, I is not correct
II. S.I. after 5 year
= P×20100×5=P
Therefore, Amount = P+P = 2P
Therefore, II is correct.
III, Amount aftr 10 yr at the rate of 20%
= P+P×20×10100=P+2P=3P
Therefore, III Is not correct.
Hence, II is the correct option.