Question

the sum of two number = 500 . the 12 percet of first number is equal to 15 percent of second number what is number​

Answer 1

Answer:

given:-

x + y = 500 .....

12% x = 15% y....

then:-

y = 500 - x

find x :-

12% of x = 15℅ of ( 500 - x )

$\frac{12}{100} x \: = \frac{15}{100} \times (500 - x) \\ 12x = 15 \times (500 - x) \\ 12x = 7500 - 15x \\ 12x + 15x = 7500 \\ 27x = 7500 \\ x = \frac{7500}{27} \\ x = 277.78$

now find y:-

y = 500 - x

y= 500 - 277.78

y = 222.22

the first number is 277.78 and second number is 222.22