Question

sum of two numbers is 100 one is 4 times the other find the number​

Answer 1

Answer:

let the number is =x

Step-by-step explanation:

4x+X=100

5x=100

x=100/5

so,X = 20

4x = 20×4= 80

x= 20

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Answer 2

Answer:

80 & 20

Let the two nos. be x and y

By 1st condition,

x+y=100 - - - - -(1)

By 2nd condition,

x=4y - - - - -(2)

Putting the value of x=4y in

Eq. (1)

x+4y=100

4y+y =100 - - -from (2)

5y=100

y=100/5

y=20

PUtting y=20 in eq.(2)

x=4(20)

x=80