The average of 11 results is 42, if the average of first six results is 49 and that of the last six ...
The average of 11 results is 42, if the average of first six results is 49 and that of the last six is 52. Find the sixth result?
Answer/Solution
144
Steps/Work
1 to 11 = 11 * 42= 462
1 to 6 = 6 * 49 = 294
6 to 11 = 6 * 52 = 312
6th = 294 + 312 – 462 = 144
Answer:C
1 to 6 = 6 * 49 = 294
6 to 11 = 6 * 52 = 312
6th = 294 + 312 – 462 = 144
Answer:C