1. By selling an article for ₹ 240, a man incurs a loss of 10%. At what price should he sell it, so that he makes a profit of 20%?

₹ 264

₹ 264

₹ 300

₹ 320

2. If x : y = 3 : 1, then x3 - y3 : x3 + y3 = ?

14 : 13

11 : 10

13 : 14

10 : 11

3. The next number of the sequence 3, 5, 9, 17, 33 ...... is

50

60

65

49

4. If a : b = c : d = e : f = 1 : 2, then (pa + qc + re) : (pb + qd + rf) is equal to —

1: 2

2: 3

p: (a + b)

(p + q) : c

5. A common factor of (137 + 117) and (135 + 115) is –

24

135 + 115

132 + 112

None of these

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