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.
How do you workout this problem?
Date Posted: 1 year ago
Views: 190
See 1 Answer
a)
220 = 2²×5×11
160 = 2⁵×5
140 = 2²×5×7
Highest common factor = 2²×5 = 20
Time for them to meet again = 20 mins
b)
Time they meet is 1550
C)
Duration between 1530 and 1630 = 60 mins
Number of times they will meet = 60÷20 = 3
220 = 2²×5×11
160 = 2⁵×5
140 = 2²×5×7
Highest common factor = 2²×5 = 20
Time for them to meet again = 20 mins
b)
Time they meet is 1550
C)
Duration between 1530 and 1630 = 60 mins
Number of times they will meet = 60÷20 = 3
360 Tutoring Program