Question

1. The sum of two numbers is 40. One number is 10
more than the other. What are the numbers?​

Answer 1

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Let the number be x.

According to the question,

x + x + 10 = 40

=> 2x = 40 - 10

=> 2x = 30

=> x = 30 ÷ 2

=> x = 15

∴ First Number = x = 15

Second Number = x + 10 = 25

Answer 2

Answer:

The two numbers are 15 and 25.

Step-by-step explanation:

Let the two numbers be x and y.

Then , According to the question,

x + y = 40 ...(i)

x = y + 10   ...(ii)

Use equation (ii) in (i),

y + 10 + y = 40

2y + 10 = 40

2y = 40 - 10

2y = 30

y = 30/2

y = 15

Using y = 15 in (i)

x + 15 = 40

x = 40 - 15

x = 25

∴ The two numbers are 15 and 25.