Question
Average marks scored by Vineet in five subjects are 75.
The average marks scored by him (excluding his highest and lowest marks) are 60 and lowest marks scored by him are 55. Find the highest marks scored by him.Solution
Sum of marks scored by him in five subjects = 5 x 75 = 375 Sum of marks scored by him (excluding his highest and lowest marks) = 3 x 60 = 180 Therefore, sum of highest and lowest marks = 375 – 180 = 195 So, highest marks scored by him = 195 – 55 = 140
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