8 May 2020

Q. The average of 7 subjects of Mr Raj is 75. If 1 subject is decreased, his average decreased/ increased by 3. What is the average of 6 subjects?

TLT:

In case of Decrease= 75 + 6 X 3 =75+18=93

In case of Increase= 75 – 6 X 3 =75-18=57