the interest on sum of money at end of 2 1/2 years is 4/5 of the sum . what is rate of percent
Answers
Answered by
36
Let the sum be rs 100
SI= 4/5 of the sum
SI= 4/5×100=rs 80
Time= 21/2
Rate= SI×100/P×T
Rate= 80×100/100×21/2=160/21 % pa convert into whole.
SI= 4/5 of the sum
SI= 4/5×100=rs 80
Time= 21/2
Rate= SI×100/P×T
Rate= 80×100/100×21/2=160/21 % pa convert into whole.
Answered by
18
Dear Student,
◆ Answer -
Rate percent = 32 %
● Explanation -
Let P be sum invested and r be rate percentage.
Interest = P × r × t
4P/5 = P × r × 5/2
r = 4/5 × 2/5
r = 8/25
r = 8/25 × 100 %
r = 32 %
Hence, rate of percent over given sum is 32 %.
Hope this is helpful to you. Best luck dear..
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