In an Examination, Lisa obtained 20% more than Susan but 10% less than Lira. If the marks obtained by Susan is 54%, find the percentage marks obtained by Lira.

A. 86.66%

B. 72%

C. 78.33%

D. 77.77%

Answer: Option B

Solution(By Examveda Team)

Let total marks = 100
Susan marks = 54
Lisa marks = 54 + 20% of 54 = 64.8
X - 10% of X = 64.8
X = 72.
So % marks of Lira = 72%