The average of X, Y and Z is 2X. If the

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Home Questions 5WTX559GTS

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Average

Question:

The average of X, Y and Z is 2X. If the average of Y and Z is 20, then what is the value of X ?

Options:

Correct Answer:

Explanation:

Sum of X , Y & Z

X + Y + Z = 3 × 2X = 6X ----(1)

Sum of Y & Z = 2 × 20 = 40

Put ( Y + Z ) in eqn 1

40 + X = 6X

5X = 40

X = 8

So , Value of X = 8