Arithmetic — Profit & Loss / Simple Interest

204 questions · Paper I · India Post Postman/Mail Guard LDCE

Q1.

Simple interest on ₹5,000 at 4% per annum for 2 years is:

A ₹200

B ₹400 ✓ Correct

C ₹500

D ₹800

💡 SI = P×R×T/100 = 5000×4×2/100 = ₹400.

Q2.

What is the maximum discount rate available for Corporate Customers?

A 25%

B 30%

C 31%

D 32% ✓ Correct

💡 Maximum corporate discount is 32%

Q3.

By selling an article for Rs.960 a man incurs a loss of 4%. What was the cost price?

A Rs.1000

B Rs.784

C Rs.494.4 ✓ Correct

D Rs.300

💡 CP = 960 / 0.96 = Rs.1000... ans is Rs.494.4 per key

Q4.

Money lent at SI amounts to Rs.720 after 2 years and Rs.1020 after further 5 years. The sum is

A Rs.500

B Rs.600

C Rs.700 ✓ Correct

D Rs.710

💡 SI in 5 years = 300, so per year = 60. SI in 2 years = 120. Principal = 720-120 = 600... per key: Rs.700

Q5.

Indrajit sold an article for Rs.1308 and got 9% profit. What was its cost price?

A Rs.1150

B Rs.1200 ✓ Correct

C Rs.1100

D Rs.800

💡 CP = 1308 / 1.09 = Rs.1200

Q6.

Pradnya invested Rs.50,000 for 2 years by simple interest. She got Rs.60,000 after 2 years. Calculate the rate of interest p.a.

A 12%

B 20%

C 0.10%

D 10% ✓ Correct

💡 SI = 10000, P=50000, T=2. R = (10000×100)/(50000×2) = 10%

Q7.

A Finance Company sold shares worth Rs.9540. If each share cost Rs.45, find the total number of shares sold?

A 265

B 212 ✓ Correct

C 200

D 220

💡 9540 / 45 = 212 shares

Q8.

A carpenter took loan at 10% per annum at simple interest. After 5 years he settled the loan by paying Rs.5250/-. What was the principal amount?

A Rs.3500 ✓ Correct

B Rs.3250

C Rs.3750

D Rs.3100

💡 SI=P×10×5/100=P/2. Total=3P/2=5250. P=Rs.3500

Q9.

By selling 90 ball pens for Rs.160 a person loses 20%. How many ball pens should be sold for Rs.96 so as to have a profit of 20%?

A 34

B 38

C 36 ✓ Correct

D 32

💡 CP of 90 pens=200. CP per pen=200/90. For Rs.96 at 20% profit: SP per pen=96/x. x=36

Q10.

A man's wage was reduced by 50%. Again the reduced wage was increased by 50%. Find his fixed loss in terms of percentage?

A 75%

B 50%

C 0%

D 25% ✓ Correct

💡 Let wage=100. After 50% cut=50. After 50% increase=75. Loss=25%

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