Question

the average marks of ten students is 60. if the highest markis excluded, the average is 59. find the highest mark

Answer 1

x1 + x2 + x3 + x4............. + x10 \ 10 = 60
let x1 has the highest marks

then x2 + x3 + x3 ..... +x10 = 59 × 9 = 531
then x1 = 600 - 531
= 69

therefore highest marks are 69