NIFT PG 2020 Question Paper with solutions

Question : 8 of 150

Marks: +1, -0

If the product of two positive numbers be 1575 and their ratio is

7: 9

, then the greater number is

Solution:

Let the numbers are

7 x

and

9 x

.
According to the question,

7 x × 9 x=1575

63 x^{2}=1575

⇒ \;\; x^{2}=25 ⇒ x=5

∴

Greater number

=9 x=9 × 5=45

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