Mixed Quantitative Aptitude Questions Set 242

1. The discount allowed on an article is rs.960 more than the profit earned on the article. If the selling price of the article is rs.1920 and shopkeeper marked the article 100% above its cost price, then find profit% earned on the article.
   10%
   20%
   12%
   18%
   40%
   Option B
   Let cost price of the article = rs.100x
   MP = 100x *2/1 = 200x
   ATQ, (200x – 1920 ) – (1920 – 100x) = 960
   300x = 4800
   x = 16
   CP = 1600
   Profit % = 1920 – 1600/1600 * 100 = 20%
   

    

2. The height of cylinder is equal to the side of square. If area of square is 196m^2 and ratio and ratio of radius to height of cylinder is 3 : 2, then find total surface area of such cylinder.
   5630
   6450
   3420
   4620
   6430
   Option D
   Side of square = √196 = 14m
   height = 14m
   radius = 14/7 * 6 = 21
   TSA = 2πr ( h + r)
   = 2 * 22/7 * 21(14 + 21)
   = 4620

    

3. A man invested rs. P and (P + 350) each at the rate of 20% p.a on CI and SI respectively for two years. If ratio of total CI to total SI received by man is 44 : 75, then find amount invested by man on CI ?
   1050
   840
   450
   400
   800
   Option D
   Rate of CI for 2 years = 20 + 20 + 20 *20/100 = 44%
   CI received = P * 44/100 = 44P/100
   SI received by man = ( P + 350) 40/100 = 40P + 14000/100
   44P/40P + 14000 = 44/75
   P = 400
   

    

4. If three unbiased coins are tossed simultaneously, then find the probability of getting at most two heads ?
   3/5
   7/8
   2/5
   4/7
   2/17
   Option B
   Total outcome = 2^3 = 8
   favorable outcome = 7
   probability = 7/8
   

    

5. Pipe A and B alone can fill a tank in 20 hours and 24 hours respectively and outlet pipe C can empty same tank in 40 hours. If three pipes are opened simultaneously in how much time required to fill a empty tank ?
   20 hours
   15 hours
   18 hours
   14 hours
   28 hours
   Option B
   LCM of 20, 24 and 40 = 120
   efficiency of A = 120/20 = 6
   efficiency of B = 120/24 = 5
   efficiency of C = 120/40 = 3
   time required = 120/(6 + 5) – 3 = 15 hours
   

    

6. Directions : What will come in place of questions marks (?) in the following number series ?
   85, 104, 189, 293, 482, ?
   875
   775
   456
   565
   235
   Option B
   The series is, (85 + 104), (104 + 289), (189 + 293), (293 + 482)

    

7. 8, ?, 6, 15, 52.5, 236.25
   5
   4
   4.5
   2.5
   6
   Option B
   The series is, (* .5), (* 1.5), (* 2.5), (* 3.5), (* 4.5)

    

8. ?, 2, 3, 8, 35, 204
   2
   4
   5
   6
   8
   Option A
   The series is, (* 2 – 2), (* 3 – 3), (* 4 – 4), (* 5 – 5), (* 6 – 6),

    

9. 27, ?, 159, 324, 555, 852
   60
   86
   78
   34
   80
   Option A
   The series is, difference of difference.

    

10. 68, 92, 66, 94, 64, ?
    84
    90
    102
    96
    86
    Option D
    The series is, (+ 24), (- 26), (+ 28), (- 30), (+ 32)

     

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