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Aptitude - Discounts Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Discounts. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - The true discount and the simple interest on a certain sum for a given time and at a given rate are Rs. 240 and Rs. 160 respectively. The sum is:

Answer : D

Explanation

Sum =( S.I * T.D )/(S.I - T.D)=( 240 * 160 )/(240-160)=480

Q 2 - Rs. 40 is the true discount on Rs. 520 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?

Answer : C

Explanation

S.I. on Rs. (520 - 40) for a given time = Rs. 40.
S.I. on Rs. 480 for half the time = Rs. 20.
T.D. on Rs. 500 = Rs. 20
T.D. on Rs. 520 =Rs. (  20/480 * 520)= Rs. 21.66

Q 3 - The present worth of a certain bill due sometime hence is Rs. 1600 and the true discount is Rs. 40. The banker's discount is:

Answer : A

Explanation

(T.D.)² = P.W. * B.G
=>  B.G=(T.D.)²/
P.W.=40²/1600=1
=>B.D =T.D. + B.G. 
= 40+1 
=41

Q 4 - A man buys a watch for Rs. 2825 in cash and sells it for Rs. 3300 at a credit of 1 year. If the rate of interest is 15% per annum, the man:

Answer : B

Explanation

S.P. = P.W. of Rs. 3300 due 1 year hence = 3300*100/( 100+(10*1))=Rs.3000
So Gain = Rs. (3000-2825) =Rs. 175.

Q 5 - The banker's discount on a sum of money for 2.5 years is Rs. 1125 and the true discount on the same sum for 2 years is Rs.800. The rate percent is:

Answer : A

Explanation

B.D. for 2.5(5/2) years = Rs. 1125.
B.D. for 2 years = Rs. (1125*( 2)/5*2) =Rs. 900.
T.D. for 2 years = Rs. 800.
Sum =( B.D*T.D )/(B.D*-T.D)=Rs.( ( 900*800 )/(900-800))=Rs. 900*800/100=Rs. 7200
Thus, Rs. 900 is SI on Rs. 7200 for 2 years
Rate = ( 100*900 )/7200*2=6.25%

Q 6 - The genuine rebate on Rs 5125 due 6 months subsequently is Rs 125. The rate of interest per annum is:

Answer : A

Explanation

P.W. = Rs (5125-125) = Rs 5000
S.I. on Rs 5000 for 1/2 year is Rs 125
∴ R = (100*125)/(5000*1/2)% p.a. = 5% p.a.

Q 7 - The genuine rebate on Rs 2580 due after some time at 6% p.a. is Rs 180. After what amount of time is the aggregate due?

Answer : C

Explanation

P.W. = Rs (2580-180) = Rs. 2400
S.I. on Rs 2400 at 6% p.a. is Rs. 180
∴ Time = ((100*180))/((2400*6)) years =5/4 years = 1 year 3 months.

Q 8 - A man bought dairy animals for Rs 3000 in real money and sold it that day for Rs 3660 due 2 years consequently. In the event that the rate of hobby is 10% p.a., the man picks up:

Answer : D

Explanation

C.P. = Rs 3000
S.P. = P.W. of Rs 3660 due years hence
= Rs  ((100*3660))/(100+(10*2))=Rs ((100*3660))/120 = Rs 3050
∴ Gain% = (50/3000*100)% = 5/3%

Q 9 - In the event that Rs 20 be permitted as genuine rebate on a bill of Rs 260 due after at some point, what will be the genuine markdown on the same bill for half of the time?

Answer : B

Explanation

S.I. on Rs (260-20) for a fixed time = Rs 20
S.I. on Rs 240 for half the time = Rs 10
T.D. on Rs 250 = Rs 10
T.D. on Rs 260 = Rs (10/250*260) = Rs 10.40

Q 10 - The basic enthusiasm on Rs 750 for a long time is equivalent to the genuine rebate on Rs 810 for the same time and at the same rate. The rate of interest per annum is:

Answer : A

Explanation

S.I. on Rs 750 for 2 years = T.D. on Rs 810 due 2 years hence
∴ P.W. of Rs. 810 due 2 years hence = Rs 750
∴ T.D. = Rs (810-750) = Rs 60
Rate = ((100*60)/(750*2))% p.a. = 4% p.a.

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