Quantitative aptitude Question for all banking Bank PO,Clerk,IBPS PO,Railway,SSC,PSUs,IAS,OAS ,C-SAT Exams

Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q11.	What would be the compound interest obtained on an amount of Rs.4400 at the rate of 10% p.a. after 2 years ?

1)	Rs. 886	2)	Rs.910
3)	Rs.924	4)	Rs. 954
5)	None of these

Answer : Rs.910
Explanation :

Amount = 4400 ( 1+10/100)² = 5324

Therefore,CI = 5324 - 4400 = 924

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Q12.	Rs. 3757 is to be divided between A and B such that A�s share at the end of 7 years may be equal to B�s share at the end of 9 years. If rate percent be 10% p.a. compound Interset, B�s share is -

1)	Rs. 1700	2)	Rs. 1500
3)	Rs. 2057	4)	Rs. 1400
5)	None of these

Answer : Rs. 1700

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Q13.	If the simple interest on a sum of money for 2 years at 5% p.a. is Rs. 50. What is the compound interest on the same sum at the same rate and for the same time ?

1)	Rs. 54.25	2)	Rs. 52
3)	Rs. 51.25	4)	Rs. 60.50
5)	None of these

Answer : Rs. 51.25

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Q14.	The difference between the simple interest and the compound interest compounded yearly at the rate of 4% in a two year period is Rs. 10. The amount of investment is -

1)	4200	2)	4500
3)	5600	4)	6000
5)	None of these

Answer : 6000

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Q15.	The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:

1)	Rs. 400	2)	Rs. 480
3)	Rs. 500	4)	Rs. 600
5)	None of these

Answer : Rs. 500

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Q16.	What will Rs. 1000 be worth after three years if it earns interests at the rate of 5% compounded annually ?

1)	1057	2)	1257
3)	1157	4)	1300
5)	None of these

Answer : 1157
Explanation :

A = 1000 x [(11/10) (11/10) (11/10) ]

= Rs. 1000 x1.157 = Rs. 1157

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Q17.	The Compound interest on a certain sum for 2 years is Rs. 410 and simple interest is Rs. 400. The rate of interest per annum is -

1)	5%	2)	6%
3)	6.5%	4)	5.5%
5)	None of these

Answer : 5%
Explanation :

SHORT-CUT METHOD:

R= 2 x (C.I - S.I)/S.I x 100 = [2 x (410 - 400)] /S.I x100 = 5%

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Q18.	The difference between compound interest and simple interest on an amount of Rs. 15,000 for 2 years is Rs. 96. What is the rate of interest per annum ?

1)	6%	2)	8%
3)	9%	4)	12%
5)	None of these

Answer : 8%
Explanation : We know that, P = (Diffrent x 100 x 100) /R²

So, R =√(96 x100 x100 )15000 = 8%

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Q19.	There is 80% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 14,000 after 3 years at the same rate ?

1)	Rs.3794	2)	Rs.3714
3)	Rs.4612	4)	Rs.4634
5)	None of these

Answer : Rs.4634
Explanation :

Let P = Rs.100

Simple Interest = Rs. 80 ( ∵ 80% increase is due to the simple interest)

Rate of interest = (100�SI)/PT=(100�80)/100�8 =10% per annum

Now let's find out the compound interest of Rs. 14,000 after 3 years at 10%

P = Rs.14000 T = 3 years and R = 10%

Amount after 3 years = P(1+R/100)^T= 14000 (1+10/100)³= Rs.18634

So, C.I = Rs.18634 - Rs.14000 = Rs.4634

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Mathmetics

Q11.

What would be the compound interest obtained on an amount of Rs.4400 at the rate of 10% p.a. after 2 years ?

Q12.

Rs. 3757 is to be divided between A and B such that A�s share at the end of 7 years may be equal to B�s share at the end of 9 years. If rate percent be 10% p.a. compound Interset, B�s share is -

Q13.

If the simple interest on a sum of money for 2 years at 5% p.a. is Rs. 50. What is the compound interest on the same sum at the same rate and for the same time ?

Q14.

The difference between the simple interest and the compound interest compounded yearly at the rate of 4% in a two year period is Rs. 10. The amount of investment is -

Q15.

The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:

Q16.

What will Rs. 1000 be worth after three years if it earns interests at the rate of 5% compounded annually ?

Q17.

The Compound interest on a certain sum for 2 years is Rs. 410 and simple interest is Rs. 400. The rate of interest per annum is -

Q18.

The difference between compound interest and simple interest on an amount of Rs. 15,000 for 2 years is Rs. 96. What is the rate of interest per annum ?

Q19.

There is 80% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 14,000 after 3 years at the same rate ?

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