Question

The average wages of 500 workers were found to be Rs. 200. Later on, it was discovered that the wages of two workers were misread as 180 and 20 instead of 80 and 220. The correct average wages are : 

(a) Rs. 200.10 

(b) Rs. 200.20 

(c) Rs. 200.50 

(d) Rs. 201.00

Answer 1

Correct option (b) Rs. 200.20 

Explanation: 

500 workers → average wages is 200

Total wages = 200×500=100000

Correct read 80+220=300

Misread 180+20= 200+Rs. 100 is 

difference between correct 

wages and misread wages so we 

will add this in 1,00,000 and then

divided by 500 then we find average wages.