Question

Arun is twice as old as Shreet 5 years ago his age was three times shree age find their present ages​

Answer 1

Answer: Arun is now 20, Shree is 10 years old

Step-by-step explanation:

In the system of equations Arun's age is a. Shree is s

a = 2s .(current age equation) Subtract 5 from each for five years ago,

a-5 = 3(s-5) . Substitute 2s for a in the second equation

2s -5 = 3(s-5) distribute and reorganize

2s-5 = 3s -15 . 15 - 5 = 3s - 2s

10 = s . Substitute into the first equation to find a

a = 2(10)

a = 20

5 years ago Shree was 5 and Arun was 15

Answer 2

Answer: Arun = 20, Shreet = 10

Explanation:

Let A represent Arun's current age and S represent Shreet's current age

Current Age Age 5 years ago

A = 2S A - 5 = 3(S - 5)

Substitute A = 2S into the "5 years ago" equation to solve for S:

(2S) - 5 = 3(S - 5)

2S - 5 = 3S - 15

-5 = S - 15

10 = S

Substitute S = 10 into the "current age" equation to solve for A:

A = 2S

= 2(10)

= 20