Question

13. What number must be subtracted from each of the numbers 10. 12. 19. 24 to get
numbers which are in proportion?

Answer 1

Step-by-step explanation:

let the no. subtracted be = x

so the new numbers are 10-x, 12-x, 19-x, 24-x

according to question they are in proportion.

so,

project of means=product of extremes

(10-x)×(12-x)=(19-x)×(24-x)

120-10x-12x+x²=456-19x-24x+x²

cancellation of x from both sides

120-22x=456-43x

43x-22x=456-12o[taking constants and variables one

side]

21x=336

x=336/21

x=16

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