Question

what number must be added to each of the numbers 18, 28 ,30 and 46 so that they are in proportion ​

Answer 1

Answer:

let assume number be x

then according to question

(18+x)÷(28+x) = (30+x)÷(46+x)

by cross multiplication

we get x =2

so the number is 2

Answer 2

Answer:

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