The average weight of 18 persons increas

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Average

Question:

The average weight of 18 persons increases by 2.5 kg when a new person comes in place of one of them weighing 72 kg. The weight of the new person is:

Options:

107 kg

127 kg

117 kg

77 kg

Correct Answer:

117 kg

Explanation:

Weight of new person = Weight of old person + Increment in age

Weight of new person = 72 + 18 × 2.5 = 72 + 45 = 117 kg