Question 13

The average of 45 results was calculated as 27 but later it was found that while calculating 39 was taken as 93 by mistake, then what will be the correct average?

Solution

Average of 45 results = 27

=> Sum of 45 results = $$27\times45=1215$$

After correcting the mistake new sum = $$1215-93+39=1161$$

=> Correct average = $$\frac{1161}{45}=25.8$$

=> Ans - (A)


Create a FREE account and get:

  • Free SSC Study Material - 18000 Questions
  • 230+ SSC previous papers with solutions PDF
  • 100+ SSC Online Tests for Free

cracku

Boost your Prep!

Download App