TANCET - XAT Math Question : Simple Arithmetic Mean
The question for the day is from the topic average in arithmetic.
The average wages of a worker during a fortnight comprising 15 consecutive working days was Rs.90 per day. During the first 7 days, his average wage was Rs.87 per day and the average wage during the last 7 days was Rs.92 per day. What was his wage on the 8th day?
Correct Answer - 97
. Choice (4)
The total wage earned during the 15 days that the worker worked = 15 * 90 = Rs. 1350.
The total wage earned during the first 7 days = 7 * 87 = Rs. 609.
The total wage earned during the last 7 days = 7 * 92 = Rs. 644.
Total wage earned during the 15 days = wage during first 7 days + wage on 8th
day + wage during the last 7 days.
1350 = 609 + wage on 8th
day + 644
Wage on 8th
day = 1350 - 609 - 644 = Rs.97.
Correct answer choice (4)
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