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Q:

The True discount on Rs1760 due after a certain time at 12% per annum is Rs160. The time after which it is due is?

A) 15months	B) 5months
C) 12months	D) 10months

Answer & Explanation Answer: D) 10months

Explanation:

P.W = Rs. (1760 - 160) = Rs.1600

S.I on Rs.1600 at 12% is Rs. 160

Time = (100 x 160)/(1600 x 12) = 5/6 years = (5/6) x 12 months = 10 months

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Filed Under: True Discount

Q:

If the truediscount on a sum due 2yrs hence at 14% per annum be Rs168. The sum due is?

A) 700	B) 760
C) 768	D) 786

Answer & Explanation Answer: C) 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.

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Q:

The Present worth of Rs.2310 due $2 \frac{1}{2}$ years hence ,the rate of interest being 15% per annum, is :

A) Rs.1440	B) Rs.1750
C) Rs.1680	D) Rs.1840

Answer & Explanation Answer: C) Rs.1680

Explanation:

$P . W = R s . (\frac{100 \times 2310}{100 + (15 \times \frac{5}{2})})$ = Rs.1680

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Q:

The difference between Simple Interest and True Discount on a certain sum of money for 6 months at $12 \frac{1}{2}$ % per annum is Rs 25. Find the sum.

A) Rs.6800	B) Rs.6500
C) Rs.6000	D) Rs.6200

Answer & Explanation Answer: A) Rs.6800

Explanation:

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Q:

The true discount on a bill due 9 months hence at 12% per annum is Rs 540. Find the amount of the bill and its present worth?

A) 1600	B) 7000
C) 6000	D) 6500

Answer & Explanation Answer: C) 6000

Explanation:

Let amount be Rs.x then,

[X * R * T] / [100 + (R * T)] = T.D

=> [x * 12 * (3/4)] / [100+(12 * 3/4)] =540

=> x = 6540

Amount = Rs.6540

P.W = Rs.(6540 -540) = Rs.6000

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Q:

Find the present worth of Rs.930 due 3 years hence at 8% per annum.Aso find the discount?

A) 186	B) 180
C) 185	D) 189

Answer & Explanation Answer: B) 180

Explanation:

P.W = [100 x Amount] / [100+(R x T)]

=[100 x 930] / [100+(8x3)] = Rs. 750

T.D = Amount - P.W = 930 - 750 = Rs.180

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Filed Under: True Discount

Q:

The last day of a century cannot be

A) Monday	B) Wednesday
C) Tuesday	D) Friday

Answer & Explanation Answer: C) Tuesday

Explanation:

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Filed Under: Calendar

Q:

The last day of a century cannot be

A) Monday	B) Wednesday
C) Tuesday	D) Friday

Answer & Explanation Answer: C) Tuesday

Explanation:

A century means 100 years => 76 normal years and 24 leap years

We know that, a normal year contain 1 odd day (365/7 = 52 weeks + 1 odd day)

a leap year contain 2 odd days (365/7 = 52 weeks + 2 odd days)

100 years => 76 x 1 + 24 x 2 = 124 odd days = 124/7 = (17 weeks + 5 odd days)

200 years => 2 x 5 = 10 = 1 week + 3 odd days

300 years => 3 x 5 = 15 = 2 weeks + 1 odd day

400 years => 4 x 5 = 20 + 1 odd day (leap year) = 3 weeks + 0 odd days

500 years => 5 x 5 = 25+1 = 26/7 = 3 weeks + 5 odd days

Again repeats...

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Filed Under: Calendar

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