Question

which number should be subtracted from each of the numbers 11,23and 53 so that the resulting number should be in proportion​

Answer 1

Answer:

the no. should be 3

Step-by-step explanation:

let the no. be x

:.(11-x)/(23-x)=(23-x)/(53-x)

:.(11-x)*(53-x)=(23-x)(23-x)

:.11(53-x)-x(53-x)=(23-x)²

:.583-11x-53x-x²=23²-2(23x)+x²

:.583-64x=529-46x

:.583-529=-46x+64x

:.54=18x

:.54/18=x

:.x=3