If the mean of five consecutive integers is 30, find the largest of the numbers

Correct Answer: Option C

Explanation

Let the consecutive numbers be a, a+1, a+2, a+3, a+4
Mean = (frac{(a+a+1+a+2+a+3+a+4)}{5}\
30 = frac{5a+10}{5}\
30 times 5 = 5a + 10\
5a = 150 – 10\
5a = 140\
a = 28 \
∴ a + 4 = 28 + 4\
= 32)