A school has a strength of 550 in the year 2017 an increase of 12% in 2018 what is the total strength of school?

 A) 550

 B) 600

 C) 616

 D) None of these

Actual strength of school is = 550

There is an increase of 12%

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

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