Question

one number is five times another. their sum is 90 . what are these two numbers?​

Answer 1

Answer:

let the one number is x

x=5y

x+y=90

putting 5y in second equation.

5y+y=90

6y=90

y=90/6

y=15

putting 15

x=5*15

x=75

hence x = 75 and y=15

Answer 2

Answer:

x = 75

x = 75 y = 15

Step-by-step explanation:

Let's say the first number is x and the other is y

According to the question, we can assume that x is 5 times y, that is,

x = 5y ---> (1)

Given in the question, the sum of these 2 numbers is 90, I.e,

x + y = 90

5y + y = 90 [ from eq(1) ]

6y = 90

y = 90/ 6

y = 15 ---> (2)

x = 5y

x = 5(15) [ from eq(2) ]

x = 75

Therefore, x = 75 and y = 15

Verification:

x + y = 75 + 15 = 90