Question

solution please. .........

Answer 1

One decimal place will be 0

Answer 2

avg = total sum of all the numbers / number of items in the set.

total=[p] =275 marks

total=[c] =270 marks

total =275+270=545  marks

number of items in the set =4+4 =8

∴avg =545÷8  =68.125  =68.1

⇒option   2   ans