find the missing number 5:28 :: 8:? and the options are?

a 65

b 63

c 62

d 64

6 Answers

  • I think 65

    coz 5 square is 25, but propotion is 28 which is more then 25

    and 8 square is 64 which and 65 is the only one more then 64

  • 5 : 28 : : 8 : ?

    5/28 = 8/x

    x = 224/5

    x = 44 4/5

    The missing number must be x.

    And the wrong options are

    a 65 b 63 c 62 d 64

  • 65

  • Let the missing term is x then using propotion

    5/28=8/x

    Using cross product

    5*x=28*8

    5x=224

    x=224/5

    x=44.8

    Not either option is correct

  • 65

    because if we reverse and fraction it 28/5= 5 3/5 5 common

    65/8= 8 1/8 here 8 common

  • let the required no=x

    so,

    5/28 = (5*8)/(28*8) = 40/224

    and, 8/x = 40/5x

    so, 5x=224

    x= 224/5 = 44.8

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