Question

1. The product of 2 numbers is 1575
and their quotient is 9/7. Then the
sum of the numbers is -
a74
b. 78
C. 80
d. 90​

Answer 1

Answer:

C. 80

Step-by-step explanation:

let first number is 'X'.

and second number is 'Y'.

According to conditions

X × Y =1575--------(1)

& X÷Y=9/7--------(2)

X÷Y=9/7

X=9Y/7-------(3)

put the value in equation 1

X × Y =1575

9Y/7 × Y =1575

9YSquare =1575×7

9YSquare = 11025

YSquare= 11025/9

Ysquare = 1225

Y=√1225

Y=35

put value of y in equation 3

X=9Y/7

X=9×35/7

X=9×5

X=45

X+Y =35+45=80

Hope it's help you