Question

The sum of two number is 405 and their issue is 8 is to 7 find the number

Answer 1

:p :p :p :p :p :p :p :p :p :p :p :p :p :p :p

Heya User, 

--> I presume that the word there is "ratio" =_=

--> Now, suppose the no.s are x, y :->
Then,

--> x / y = 8 / 7
=> x / ( x + y ) = 8 / ( 8 + 7 )
=> x / 405 = 8 / 15  ----> [ x + y = 405 Given =_= ]
=> x / 27 = 8
=> x = 27 * 8 = 216 ||  y = 405 - x = 405 - 216 = 189

Eh! There we are done =_= ... No.s are 216 and 189...

Answer 2

let's us keep the 2 numbers be 8a:7a

then,acc to question

8a+7a=405
15a=405
a=405÷15
a=27

then, the first number is=8a=8×27=216
the second number is=7a=7×27=189

I hope it will hepl!!!