Question

the product of two numbers is 7 1/2 if one of them is 2 1/12 then find the other.

Answer 1

(Product/one no.=other no.)
Product= 7 1/2
One of the numbers= 2 1/2
Therefore, another number= (7 1/2)/(2 1/2) =3

Answer 2

let the numbers be X and Y ,
then ,product of X and Y = 71/2
let X be 21/12.
Now ,
21/12×Y = 71/2
Y = 71×12/2×21
Y = 426/21.
so ,Y = 142/7