Question 1. Find the simple interest and amount on:
Answer:
year
year
Amount
\text{ Rs. } \text{R } = 9 \frac{3 }{ 4} \% = \frac{39 }{ 4} \% $
S.I.
Amount
Amount
Question 2. Find the simple interest on from 18th October, 2006 to 13th march, 2007 at
. Also find the amount.
Answer:
Question 3. Ashish lent to Mark at
simple interest. After
, Mark discharged the debt by giving a watch and
in cash. What is the value of the watch?
Answer:
The value of watch
Question 4. In what time will the simple interest on be
at
Answer:
.5,
We are requires to compute time in years.
Question 5. In how much time will amount to
, when money is worth
simple interest?
Answer:
Question 6. At what rate per cent per annum will amount to
in
Answer:
Rs, Amount
Rs,
We have to compute rate of interest
… … … … … i)
in Equal i) we get
Question 7. At what rate per cent per annum will the simple interest on be
in
months?
Answer:
We have to compute .
Question 8. At what rate per cent of simple interest will a sum of money double itself in ?
Answer:
Principle Amount
S.I.
We have to compute
Question 9. Simple interest will a sum is of the sum. Find the rate per cent and the time if both are numerically equal.
Answer:
Let Principle
Numerical
We have to compute .
Question 10. What sum will yield as simple interest in
Answer:
We are required to compute
Question 11. What sum will amount to in
simple interest?
Answer:
We have to compute
Question 12. A sum of money becomes of itself in
at certain rate of simple interest. Find the rate of interest.
Answer:
We have to compute rate of interest .
Question 13. What sum of money lent at will produce the same interest in
as
produces in
?
Answer:
Consider
Question 14. If amount to
in
at simple interest, what will
amount to in
at the same rate?
Answer:
First compute for
Now for
p.a.
Now for
Question 15. A sum of money lent at simple interest amounts to in
in
. Find the sum and the rate of interest.
Answer:
Given:
are the same in both the above area from the data given in (i)
… … … …. … i)
From data given in (ii)
… … … …. … i)
Divide equation (i) by equation (ii)
From data set (i)
p.a.
Question 16. lends
to
and certain sum to
at the same time at
simple interest. If after
, a altogether receives
as interest from
find the sum lent to
.
Answer:
p.a. and,
Total interest received from both &
Total interest received from
Now we have to compute sum rent to
, R
p.a.
The amount lent by to
Question 17. The simple interest on a certain sum for is
more than the simple interest on the same sum for
. Find the sum.
Answer:
for a sum
, for;
…………………(i)
for a sum
, for,
p.a.
………………………ii)
Question 18. Two equal sums of money were lent at simple interest at p.a. for
respectively. If the difference for two periods was
, find each sum.
Answer:
for sum
year
in the S.I.for sum
The equal sums are each
Question 19. Divide into two parts so that the simple interest on the first pat for
is equal to the simple interest on the second part for
.
Answer:
Let
is
on
The Two Parts are:
Question 20. Divide a sum of into two parts such that if one part be lent at
for
months and the other at
for
months, the total interest received is
Answer:
Let be the first part of the sum.
Then becomes the second part of the sum.
The one part of sum is and second part
Question 21. In what time will a sum of money lent at simple interest become
times of itself.
Answer:
Let be the sum lent.
Question 22. A certain sum of money lent out at p.a. produced the same simple interest in
as
lent out at
p.a. for
. Find the sum.
Answer:
Let be the sum lent.
be the simple interest earned
Le be the
S.I. for p.a.
The sum lent is
Question 23. Naveen and Praveen borrowed respectively for
at the same rate of interest. If Praveen has to pay
more than Naveen, find the rate of interest.
Answer:
Let be the rate interest
,
be the S.I.paid by Praveen for
,
p.a.
Question 24. A sum of money was put at simple interest at a certain rate for . If this sum had been put at
higher rate, it would have earned
more as interest. Find the sum.
Answer:
Let be the sum lent
is interest for sum
, Rate interest
Let is the interest for sum
for interest rate
Given,
Sum lent is
Question 25. A sum of money invested at p.a. simple interest for a certain period of time yield
as interest. If this sum had been invested for
more, it would have yielded
as interest. Find the sum.
Answer:
Let sum lent is
… … … … … (i)
For sum ,
From (i) ,
Very helpful, thank you.
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Appreciate your comment…. our objective is to have superior user experience
questions are wrong. rates and amounts are wrong. kindly correct it
could you point out the question that you are referring to. there might me typing errors.
Very very helpful …… and keep doing it….