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1
A shopkeeper marks an item 40% above cost price and gives two successive discounts of 10% and 20%. What is the profit percentage?
A.0.8%
B.1.2%
C.2.4%
D.4%
Explanation: Selling price factor = 1.4 × 0.9 × 0.8 = 1.008, so profit = 0.8%.
2
A product costs ₹37. What is 22% of its value?
A.76.4
B.79.4
C.81.4
D.84.4
Explanation: 22% of ₹37 = ₹81.4.
3
A shopkeeper marks an item 40% above cost price and gives two successive discounts of 10% and 20%. What is the profit percentage?
A.0.8%
B.1.2%
C.2.4%
D.4%
Explanation: Selling price factor = 1.4 × 0.9 × 0.8 = 1.008, so profit = 0.8%.
4
If the ratio of present ages of A and B is 5:7 and after 8 years the ratio becomes 7:9, what is A's present age?
A.20 years
B.25 years
C.30 years
D.35 years
Explanation: Let ages be 5x and 7x. Then (5x+8)/(7x+8)=7/9, giving x=5 and A=25 years.
5
A sum becomes ₹14,400 in 2 years and ₹17,280 in 3 years at compound interest. Find the rate of interest per annum.
A.10%
B.15%
C.20%
D.25%
Explanation: 17280/14400 = 1.2, so the annual growth factor is 1.2. Hence, rate = 20%.
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