Q # 1: How many terms of the G.S 1 + 4 + 16…. Must be taken to have their sum equal to 341. a) 4 b) 6 c) 5 d) 7 Q # 2: If 3 + 3α + 3α2 + …….. = 25/8, then α = ? a) 6/11 b) 2/13 c) 7/15 d) None Q # 3: Find 20th term of the series log 2 + log 4 + log 8 + log 16 + …….. a) 21log2 b) 20log2 c) log2 d) 10log2 Q # 4 Find common fraction of 0.-45 a) 5/11 b) 5/13 c) 4/11 d) 3/11 Q # 5: Geometric mean between 2√ 3and 6√ 3 is a) -6 b) ∓ 6 c) ∓ 5 d) None Q # 6: What is the next number in the series 212, 179, 146, 113,… is ? a) 102 b) 96 c) 80 d) 84 Q # 7: If 2, x, 32 are in G. P then x = ? a) ∓ 16 b) ∓ 8 c) ∓ 4 d) None Q # 8: If the A.M between the roots of the quadratic equation is 8 and G.M is 5 then the equation is, a) x2 – 16x – 25 = 0 b) x2 + 16x – 25 = 0 c) x2 + 16x + 25 = 0 d) x2 – 16x + 25 = 0. Q # 9 If 2x = 32 and 3y = 27 then xy = ? a) 5 b) 15 c) 10 d) 25 Q # 10 The perimeter of an isosceles triangle is 36 cm, the altitude to the unequal side is 12 cm determine length of the sides a) 12,12 b) 14,8 c) 30,10 d) 13,10 |
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