the average of the marks of 11 students in a class is 36 . if the marks of each student are doubled , find the new average ?
sum of the marks for the 11 students = 11 * 36 = 396 . the marks of each student are doubled , the sum also will be doubled . the new sum = 396 * 2 = 792 . so , the new average = 792 / 11 = 72 . answer : d
multiply(36, const_2)