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1
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.
2
A product costs ₹45. What is 5% of its value?
A.17.5
B.20.5
C.22.5
D.25.5
Explanation: 5% of ₹45 = ₹22.5.
3
A product costs ₹49. What is 9% of its value?
A.39.1
B.42.1
C.44.1
D.47.1
Explanation: 9% of ₹49 = ₹44.1.
4
A product costs ₹34. What is 9% of its value?
A.25.6
B.28.6
C.30.6
D.33.6
Explanation: 9% of ₹34 = ₹30.6.
5
A product costs ₹31. What is 6% of its value?
A.13.6
B.16.6
C.18.6
D.21.6
Explanation: 6% of ₹31 = ₹18.6.
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