Question

The sum of two numbers is 45 and their ratio is 7: 8. The two numbers are: (a) 20, 25 (c) 22, 23 (b) 21, 24 (d) none of the above

Answer 1

Answer:

21 and 24

Step-by-step explanation:

let x and (45 - x) be the num

   ∴ x/(45-x) = 7/8

⇒           8x = 315 - 7x

i.e.,        15x = 315

       ⇒     x = 21

the other num,    45-x = 45 - 21

                                    = 24

21,24 are the nums

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