Question

The product of two rational numbers is -20. If one of the numbers is 5/6,find the other number.​

Answer 1

let the rational number be X and Y

then, x * y = - 20

let X be = 5/6

then, 5/6 * y = - 20

y = - 20 x 6/5

y = - 24

5/6 x -24 = -20

5 x -4 = -20

-20 = -20

hence proved.