Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Secondary 1 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Please help to solve this question, thank you.
Date Posted: 3 years ago
Views: 176
See 1 Answer
Let n be number of books bought for each type.
Amount spent = (30xn) +(40xn) = 70n
If spend same amount on each type of book, he will spend 35n on each type of book.
35n / 30 + 35n / 40 = 2n+1
40 x 35n + 30 x 35n = 1200 (2n+1)
…
n = 24
Total cost = 70 x 24 = …
Amount spent = (30xn) +(40xn) = 70n
If spend same amount on each type of book, he will spend 35n on each type of book.
35n / 30 + 35n / 40 = 2n+1
40 x 35n + 30 x 35n = 1200 (2n+1)
…
n = 24
Total cost = 70 x 24 = …
360 Tutoring Program