The total number of students in a class in 2016 was 550, their strength increased by 12% what is total strength now?

A) 610

B) 616

C) 615

D) None of these

Step-by-step explanation:

actual strength of the school is 550

there is an increase of 12%

therefore there is an increase of 12% of 550= 0.12*550=66

therefore the total strength of the school in the year 2018 is 550+66 = 616