Question

what should be subtracted from each of the numbers 5,7,11,17 so that the new number become proportional​

Answer 1

Step-by-step explanation:

Just use the basic equation of “Ratios & Proportion”

a/b = c/d

Now here we have to find the no. which when substracted from numerator and denominator leaves the remainder in proportion.

Thus let that no. Be “x”.

So the equation will be :

a-x/b-x = c-x/d-x

( As if same no. is subtracted from numerator and denominator the fraction remains same)

Thus

23-x/30-x = 57-x/78-x

Now don't waste your time in solving such tedious quadratic equation, simply go with the options.

Correct Answer : 6

17/24 = 51/72