Question

the sum of two numbers is 21. the secound number is six times the first number. work out the two numbers?

Answer 1

The numbers are 3 and 18

Step-by-step explanation:

Step 1: Given details are sum of numbers = 21, let the numbers be x and y. Form equations out of the given details.

⇒ x + y = 21 ---- (1)

⇒ y = 6x --------- (2)

Step 2: Substitute (2) in (1)

⇒ x + 6x = 21

⇒7x = 21

⇒x = 3

• Step 3: Find the value of y using x

⇒ y = 6 × 3

⇒ y = 18