Simple Interest Test

Result

Simple Interest Test - 1

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Weekly Quiz Competition

Question 1
1 / -0.25

At what rate per cent, a sum of money doubles itself in 15 years?

A
25%

B
6%

C
6.66%

D
8%

E
None of these

Solution
Question 2
1 / -0.25

A sum becomes 28/25 of itself in 5 years, find the rate of interest.

A
3%

B
5%

C
12%

D
2.40%

E
None of these

Solution
Question 3
1 / -0.25

If ₹ 900 amounts to ₹ 1,080 in 4 years at simple interest, what sum will amount to ₹ 1,275 in 5 years at the same rate?

A
1,020

B
1,050

C
1,080

D
1,200

E
None of these

Solution
Question 4
1 / -0.25

A sum of money doubles itself in 7 years, in how many years it will become four fold ?

A
10 years

B
35 years

C
14 years

D
21 years

E
28 years

Solution
Question 5
1 / -0.25

A certain sum of money amounted to ₹ 575 at 5% in a time in which ₹ 750 amounted to ₹ 840 at 4%. The rate being the simple interest, what was the sum?

A
₹ 650

B
₹ 625

C
₹ 500

D
₹ 475

E
None of these

Solution
Question 6
1 / -0.25

₹ 4,000 is divided into two parts such that if one part be put out at 3% and the other at 5%, the annual interest from both the investments be ₹ 144. Find the first part.

A
₹ 3,000

B
₹ 2,800

C
₹ 2,500

D
₹ 1,200

E
None of these

Solution
Question 7
1 / -0.25

A sum of money amounts to ₹ 767 in 3 years and ₹ 806 in 4 years at the rate of 6%. What is the sum?

A
₹ 600

B
₹ 650

C
₹ 700

D
₹ 675

E
None of these

Solution
Question 8
1 / -0.25

In how many years will a sum of money double itself at 12% per annum?

A
6 years 9 months

B
8 years 4 months

C
7 years 6 months

D
8 years 6 months

E
None of these

Solution

Time = 100/rate = 100/12 = 25/3 years

= 8 years 4 months
Question 9
1 / -0.25

What annual payment will discharge a debt of ₹ 580 due in 5 years, the rate being 8% per annum?

A
₹ 166.40

B
₹ 65.60

C
₹ 100

D
₹ 120

E
None of these

Solution

Suppose, every instalment = ₹ 100

So, (100+8×4) + (100+8×3) + (100+8×2)

+ (100 + 8 × 1) + 100 = ₹ 580

When it is ₹580 then instalment = ₹100.
Question 10
1 / -0.25

A lent ₹ 600 to B for 2 years and ₹ 150 to C for 4 years and received altogether from both ₹ 90 as simple interest. The rate of interest is:

A
12%

B
4%

C
5%

D
10%

E
None of these

Solution