10. Find the sum of money on which the difference between compound interest and simple interest at the
rate of 10% per annum for 2 years is 500.
Answers
Answer:
Answer
Let the sum be Rs.100
Computation of compound interest:
Prinicpal =Rs.100
R=10% per annum and n=2 years.
Amount=Rs.
⎣
⎢
⎡
100×(1+
100
10
)
2
⎦
⎥
⎤
=Rs.
⎣
⎢
⎡
100×(
2
11
)
2
⎦
⎥
⎤
=Rs.121
Computation of simple interest:
Prinicpal =Rs.100
R=10% and Time =2 years.
∴S.I.=Rs.(
100
100×10×2
)=Rs.20
Thus, difference in C.I. and S.I.=Rs.(21−20)=Re.1
Now, if difference between C.I and S.I. is Re.1, Then Sum =Rs.100
If difference between C.I. and S.I. is Rs.500, Then Sum =Rs.(100×500)=Rs.50000
Answer:
Very easy
I study in class 7E.
so I know this
Step-by-step explanation:
first,
Rate - 10 percent.
time - 2 year
Simple interest - 500 RS
Sum of money = principle - ?
Simple interest - Principle×Rate×Time÷100
500 = Principle×10×2 ÷ 100
listen I have written divide 100 but you have to write this as upon 100. hope you understand
then
500×100 upon 10×2
= we cut 10 from 100 and answer come 10 then again divide 10 from 2 answer come 5 then divide 500 from 5
the FINAL ANSWER was 100 × 500 = 50000
I think you study in class 8 so I am not sure about my answer because there is difference between our chapters and rules