Quant Quiz on Ratio and Proportion for DSSSB Exam

Quant Quiz on Ratio and Proportion for DSSSB Exam

   1. If A, B, C and D are four numbers such that A: B = 2 : 3, B: C = 4: 5, C : D = 5: 8 Then, A : D is equal to.
        (a)  1 : 3                                (b)  3 : 1
        (c)  2 : 3                                (d)  3 : 2

   2. If A : B = 3 :4, B : C = 5 : 7 and C : D = 8 : 9. Then the ratio A : D is -
        (a)  3 : 7                                (b)  7 : 3
        (b)  21 : 10                            (d)  10 : 21

   3. If a/b=7/9 and b/c=3/5 Then, the value of a: b: cis
        (a)  7 : 9 : 15                         (b)  7 : 9 : 5
        (c)  21 : 35 : 45                     (d)  7 : 3 : 15

  4. The sum of three numbers is 58. The ratio of first to second is 4: 9 and the second to third is 9: 16, the sum of first and third numbers is  -
        (a)  40                                   (b)  29
        (c)  28                                   (d)  50

    5.  Two numbers are in the ratio 3:  5. If 9 is subtracted from each, the new numbers are in the ratio of 12: 13. Then, smaller number is -
        (a)  27                                   (b)  33
        (c)  49                                   (d)  55

    6.  The mean proportional between the numbers 8 and 18 is
        (a)  32/9                                (b)  12
        (c)  13                                   (d)  None of these

    7.  Find the third proportional to 9 and 12.
        (a)  12                                   (b)  14
        (c)  16                                   (d)  18

    8.  Find the fourth proportional to 4, 5 and 12.
        (a)  13                                   (b)  14
        (c)  15                                   (d)  16

    9.  A bag contains Rs. 102 in the form of rupee, 50 paise and 10 paise coins in the ratio 3: 4: 10. The number of 10 paise coins is -
        (a)  340                                 (b)  60
        (c)  80                                   (d)  170

    10. A sum of Rs. 53 is divided amongst A, B and C in such a way that A gets Rs. 7 more than B gets and B gets Rs. 8 more than C gets, the ratio of their shares is-
        (a)  6 : 7 : 8                           (b)  25 : 18 : 10

        (c)  12: 14: 9                       (d)  None of these  

  Study notes on Ratio and Proportion for DSSSB Exam

Answer:

 1. (a) 2. (d) 3. (c) 4. (a) 5. (b) 6. (b) 7. (c) 8. (c) 9. (d) 10. (b)

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