A number x is three times another number

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

A number x is three times another number y. If the sum of both the numbers is 20, then x and y, respectively, are:

Options:

8 and 12

15 and 5

5 and 15

2 and 18

Correct Answer:

15 and 5

Explanation:

x = 3y

If the sum of both the numbers is 20

Now, x + y = 20

= 3y + y = 20

= 4y = 20

= y = 5

The value of x

x + y = 20

= x + 5 = 20

= x = 20 - 5 = 15

So the values of x and y = 15 and 5