Reasoning Aptitude Verbal GK Quiz

Aptitude True Discount Question and Answer

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1. If Rs. 10 be allowed as true discount on a bill of Rs. 110 due at the end of a certain time, then the discount allowed on the same sum due at the end of double the time is:

A) Rs. 20

B) Rs. 21.81

C) Rs. 22

D) Rs. 18.33

Answer:D) Rs. 18.33

Explanation:
S.I. on Rs. (110 - 10) for a certain time = Rs. 10.
S.I. on Rs. 100 for double the time = Rs. 20.
T.D. on Rs. 120 = Rs. (120 - 100) = Rs. 20.

T.D. on Rs. 110 = Rs.
20 / 120
x 100 = Rs. 18.33


2) The simple interest and the true discount on a certain sum for a given time and at a given rate are Rs. 85 and Rs. 80 respectively. The sum is: ?

A) Rs. 1800

B) Rs. 1450

C) Rs. 1360

D) Rs. 6800

Answer:C) Rs. 1360

Explanation:

S.I. x
T.D. / (S.I.)
- (T.D.) = 85 x
80 / (85 - 80)
= Rs. 1360.


3) If the true discount on s sum due 2 years hence at 14% per annum be Rs. 168, the sum due is:

A)Rs. 768

B)Rs. 968

C)Rs. 1960

D)Rs. 2400

Answer:Rs. 768

Explanation:

P.W. = 100 x
T.D. / R x T
= 100 x
168 / 14 x 2
= 600.
Sum = (P.W. + T.D.) = Rs. (600 + 168) = Rs. 768.


4) Rahul purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then Rahul has a gain of:

A) 0%

B) 5%

C) 7.5%

D) 10%

Answer:A) 0%

Explanation:

C.P =Rs.3000 S.P =
(3600 X 100) / 100
+(10 X 2)= Rs. 3000 Gain =0%


5)The true-discount on Rs.2480 due after a certain period at 5% is Rs.80. Find the due period?

A)6months

B) 5months

C) 8months

D) 3months

Answer:C) 8months

Explanation:
P.W= Amount – (T.D)

Time =
(100 x T.D) / (PW X R)

Exercise

Exercise 1

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