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Direction: Find out the wrong number in the following number series. Q. 3, 7, 13, 20, 31 A.3 B.7 C.13 D.20 E.21 Sol: 12 + 2 = 3 22 + 3 = 7 32 + 4 = 13 42 + 5 = 21 52 + 6 = 31

Direction: Find out the wrong number in the following number series. Q. 10, 24, 68, 100, 222 A.10 B.24 C.68 D.100 E.222 Sol: 23 + 2 = 10 33 – 3 = 24 43 + 4 = 68 53 – 5 = 120 63 + 6 = 222

14 % of 750 – (3/8) of (5/7) of 280 =? + 150÷ 3 ÷ 5 A.40 B.50 C.20 D.30 E. None of these Sol: 14 % of 750 – (3/8) of (5/7) of 280 = x + 150 ÷ 3 ÷ 5 (14/100) * 750 – (3/8) * (5/7) * 280 – (150/3) * (1/5) = x x = 105 – 75 – 10 = 20

The ratio of the present age of A, B and C is 4:5:3 respectively. If 5 years ago, the sum of the age of A, B and C together is 81, then find the difference between the present age of B and C? A. 24 years B. 36 years C. 20 years D. 16 years E. ...

A boat covers x km downstream in 6 hours and also covers the same distance upstream in 15 hours. If the speed of the stream is decreased by 20%, then the time taken by the boat to cover 235 km downstream is 5 hours. Find the value of x? A. 210 B. 300 C. 160 D. 100 E. None of these Sol: Speed of ...

Direction: What approximate value should come in the place of (?) in the following questions? Q. 18.18 *3.412 +24.32 *3.413 =?* √10 A.39 B.42 C.37 D.33 E.45 Sol: 18.18 * 3.412 + 24.32 * 3.413 = ? * √10 54 + 72 = ? * 3 ? = 42

23, 21, ?, 118, 470, 2348 A.20 B.30 C.40 D.70 E.90 Sol: 23 * 1 – 2 = 21 21 * 2 – 2 = 40 40 * 3 – 2 = 118 118 * 4 – 2 = 470 470 * 5 – 2 = 2348

Direction: Find out the wrong number in the following number series. Q. 0.5, 2, 4, 7.5, 9.5, 13 A.3 B.14 C.10.5 D.5 E.7.5 Sol: 0.5 + 1.5 = 2 2 +2 = 4 4+ 2.5 =6.5 6.5 + 3 = 9.5 9.5 + 3.5 = 13

Direction: Find out the wrong number in the following number series. Q. 19, 99, 219, 353, 535, 759 A.99 B.535 C.759 D.353 E.219 Sol: 19 + (20 * 4) = 99 99 + (22 * 5) = 209 209 + (24 * 6) = 353 353 + (26 * 7) = 535 535 + (28 * 8) = 759

The age of P after 8 years is equal to the present age of Q and the present age of P is 8/9th of the present age of R and the average of the ages of Q and R after 4 years is 42 years. Find sum of the present age of P and the age of Q before 6 years. ...