Question

A tutor charges $30 per hour. in one week, the tutor spends 5 and a half hours tutoring one student and 12 hours tutoring another student. determine the total amount the tutor earned that week. Answers 1. thuhuong The total amount the tutor earned in a week is$525.
Unitary Method
The unitary technique determines the value of the a unit and subsequently the value of a necessary number of units.
Given,
The charge of a tutor for one hour = $30 In a week, The total hours taken by the tutor for one student = 5 and half hours The total hours taken by the tutor for another student = 12 hours ∴ The total hours taken by the tutor in that week = 5 and half + 12 = 17 and half hours. Then, The amount earned by the tutor for first student = 5 1/2 × 30 = 165$
The amount earned by the tutor for second student = 12 × 30 = 360$∴ The total amount earned by the tutor in that week = 165 + 360 = 525$