# type 1 basic simple interest using formula Practice Questions Answers Test with Solutions & More Shortcuts

#### simple interest PRACTICE TEST [6 - EXERCISES]

Question : 1 [SSC SAS 2010]

A lent Rs.5000 to B for 2 years and Rs.3000 to C for 4 years on simple interest at the same rate of interest and received Rs.2200 in all from both as interest. The rate of interest per annum is

a) 5%

b) 7%

c) 10%

d) 7\$1/8\$%

Using Rule 1,

Let the rate of interest per annum be r%

According to the question,

\${5000 × 2 × r}/100 + {3000 × 4 × r}/100 = 2200\$

100r + 120r = 2200

220 r = 2200

r = \$2200/220\$ = 10%

Question : 2 [SSC CGL Prelim 2003]

Rs.500 was invested at 12% per annum simple interest and a certain sum of money invested at 10% per annum simple interest. If the sum of the interest on both the sum after 4 years is Rs.480, the latter sum of money is :

a) Rs.750

b) Rs.450

c) Rs.550

d) Rs.600

Using Rule 1,

Simple interest gained from Rs.500

= \${500 × 12 × 4}/100\$ = Rs.240

Let the other Principal be x.

S.I. gained = Rs.(480 - 240) = Rs.240

\${x × 10 × 4}/100\$ = 240

\$x = {240 × 100}/40\$ = Rs.600

Question : 3 [SSC CGL Prelim 2003]

A certain sum of money amounts to Rs.756 in 2 years and to Rs.873 in 3\$1/2\$ years at a certain rate of simple interest. The rate of interest per annum is

a) 11%

b) 10%

c) 13%

d) 12%

S.I. for 1\$1/2\$ years

= Rs.(873 - 756) = Rs.117

S.I. for 2 years

= Rs.\$(117 × 2/3 × 2)\$ = Rs.156

Principal = 756 - 156 = Rs.600

Now, P = 600, T = 2, S.I. = 156

R = \${100 × S.I.}/{P × T}\$

= \${100 × 156}/{600 × 2}\$ = 13%

Using Rule 12,

Rate of interest

= \$({A_1 - A_2}/{A_2T_1 - A_1T_2})\$ × 100

= \$({756 - 873}/{873 × 2 - 756 × 7/2}) × 100\$

= \$({- 117}/{1746 - 2646}) × 100\$

= \$({- 117}/{- 900})\$ × 100 = 13%

Question : 4 [SSC CGL Prelim 2005]

A man had Rs.16,000, part of which he lent at 4% and the rest at 5% per annum simple interest. If the total interest received was Rs.700 in one year, the money lent at 4% per annum was

a) Rs.8,000

b) Rs.12,000

c) Rs.6,000

d) Rs.10,000

Using Rule 1,

Let the sum lent at 4% = Rs.x

Amount at 5%= (16000 - x )

According to the question,

\${x × 4 × 1}/100 + {(16000 - X) × 5 × 1}/100\$ = 700

4x + 80000 - 5x = 70000

x = 80000 - 70000 = Rs.10000

Question : 5 [SSC CGL Prelim 2000]

A sum of Rs.1600 gives a simple interest of Rs.252 in 2 years and 3 months. The rate of interest per annum is:

a) 8%

b) 5\$1/2\$%

c) 6%

d) 7%

Using Rule 1,

Principal (P) = Rs.1600

T = 2 years 3 months

= \$(2 + 3/12) yrs. = (2 + 1/4) yrs. = 9/4 yrs.\$

S.I = Rs.252

R = % rate of interest per annum

R = \${100 × S.I.}/{P × t}\$

= \${100 × 252}/{1600 × 9/4}\$

Rate of interest = 7% per annum.

## Recently Added Subject & Categories For All Competitive Exams

#### Top 149+ Biology General Knowledge Practice MCQ Test

Top Biology Ecology & Environment Awareness General Knowledge Multiple Choice Questions And Answers. General Science GK Practice Test For Competitive Exams

December-16-2022 by Careericons

#### Important General Science Biology Practice MCQ Questions

Top General Science Biology In Human Welfare Based Multiple Choice Questions And Answers, Practice MCQ Test For All Competitive Exams, NEET, SSC, Interview

December-06-2022 by Careericons

#### Top 199+ General Science Biology Practice Test, MCQ PDF

Most Important General Science Biology Human Welfare Multiple Choice Questions And Answers (MCQ) PDF, Practice Test For All Competitive Exams, SSC, NEET, RRB

December-01-2022 by Careericons

#### New General Science Biology MCQ Online Practice Test, PDF

Top Most General Science Biology Food Production Multiple Choice Questions And Answers (MCQ), Online GK Practice Test, PDF For All Competitive Exams, NEET

November-29-2022 by Careericons