131)

A sum of money at a certain rate per annum of simple interest doubles in the 5 years and at a different rate becomes three times in 12 years. The lower rate of interest per annum is

A)

15%

B)

20%

C)

\(15 {3\over 4}\) %

D)

\(16 {2\over 3}\) %

132)

With a given rate of simple interest, the ratio of principal and amount for a certain period of time is 4:5. After 3 years, with the same rate of interest, the ratio of the principal and amount becomes 5:7. The rate of interest is

A)

4%

B)

5%

C)

6%

D)

7%

133)

Ramesh deposited Rs. 15600 in a fixed deposit at the rate of 10% per annum simple interest. After every second year, he adds his interest earnings to the principal. The total interest at the end of fourth year is

A)

Rs.6716

B)

Rs.6560

C)

Rs.6432

D)

Rs.6864

134)

A person invests Rs 12000 as fixed deposit at a bank at the rate of 10% per annum simple interest. But due to some pressing needs he has to withdraw the entire money after 3 years, for which the bank allowed him at lower rate of interest. If he gets Rs 3320 less than what he would have got at the end of 5 years, the rate of interest allowed by the bank is

A)

\(7 {5 \over 9}\)%

B)

\(7 {4 \over 9}\)%

C)

\(7 {8 \over 9}\)%

D)

\(7 {7 \over 9}\)%

135)

Rs 8,000 amounts to Rs 9,159.20 in ‘t' months at 14% per annum interest being compounded half-yearly. What will be the amount (in ₹ nearest to an integer) in ‘t + 9' months on a sum of ₹ 10000 at 16% pa if the interest is compounded 9-monthly?

A)

13046/-

B)

13096/-

C)

14000/-

D)

14046/-

136)

A sum of money doubles itself in 4 years at compound interest. It will amount 8 times itself in at the same rate of interest in:

A)

16 years

B)

15 years

C)

12 years

D)

10 years

137)

The difference between Simple Interest & Compound Interest for the fourth year is Rs 7280 at 20% per annum. What is the principal amount.

A)

25000/-

B)

50000/-

C)

75000/-

D)

90000/-

138)

At a certain rate per annum, the simple interest on a sum of money for one year is Rs. 260 and the compound interest in the same sum for two years is Rs 540.80/-. The rate of interest per annum is 

A)

5%

B)

6%

C)

7%

D)

8%

139)

A sum of Rs 6000 is deposited for 3 years at 5% per annum, compound interest compounded annually. The difference of interests for 3 and 2 years will be (in Rs.)

A)

320.75

B)

330.75

C)

340.75

D)

350.75

140)

What sum will give Rs 244/- as the difference between simple interest and compound interest at 10% pa in 1½ years compounded half-yearly?

A)

32000/-

B)

34000/-

C)

36000/-

D)

38000/-