Question

the sum of two numbers is 40and there difference of 15 and 4 of them​

Answer 1

Answer:

the nos are 27.5 and 12.5

Step-by-step explanation:

let the nos be x and y

therefore,

x+y=40

x-y=15

by elimination method y gets canceled

hence,

2x=55

x=27.5

put the value of x in any equation

27.5+y=40

y=40-27.5

y=12.5

Answer 2

let the two numbers be X and y.

given, X + y = 40 and X - y = 15

in the question it is written that one of the number is 4.

then sum of the two numbers = 4 + ? = 40

= ? = 40 - 4 = 36

hence the two numbers are 4 and 36.

I hope it will helps you!

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