Jharkhand PSC Prelim Exam 2008 Solved Paper

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Question : 89 of 100

Marks: +1, -0

The ratio of two number is 28 : 39. If the product of two number is 2184 then find the number?

28, 39
56, 78
74, 11
112, 156

Solution:

(2) Let the number be

28 x

and

39 x

then,

28 × 29 × x

=1092 x

1,092 x=2,184

x=\;{2,184}/{1.092}=2

=x=2

First number

=28 × 2=56

Second number

=39 × 2=78

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