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Consider the given question and decide which of the following statement(s) is/are sufficient to answer the question.

What is the average daily wage of X, Y and Z?

Statements:

  1. Y’s salary is half of (X + Z)
  2. X and Y together earn Rs. 40 more than Z and Z earns Rs. 500

This question was previously asked in
RRB ALP Previous Paper 3 (Held On: 9 Aug 2018 Shift 3)
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  1. Both 1 and 2 are sufficient
  2. Neither 1 nor 2 is sufficient
  3. 1 alone is sufficient while 2 alone is insufficient
  4. 2 alone is sufficient while 1 alone is insufficient

Answer (Detailed Solution Below)

Option 4 : 2 alone is sufficient while 1 alone is insufficient
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Detailed Solution

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From statement 2,

Earning of Z = Rs. 500

Earning of X and Y = Rs. 500 + 40 = Rs. 540.

⇒ Required average of daily wages = (X + Y + Z)/3 = (540 + 500)/3 = Rs. 1040/3

∴ 2 alone is sufficient while 1 alone is insufficient.

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