Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 3 | E Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Please help
Date Posted: 4 years ago
Views: 240
let tens digit be x
then ones digit is 6-x
value of the number is 10x+(6-x).
product of digits is (1/3) of original number
x(6-x) = (1/3)[10x+(6-x)]
…….
x^2-3x+2=0
(x-1)(x-2)=0
x = 1 or 2
the original number is 15 or 24 (2 possible answers)
then ones digit is 6-x
value of the number is 10x+(6-x).
product of digits is (1/3) of original number
x(6-x) = (1/3)[10x+(6-x)]
…….
x^2-3x+2=0
(x-1)(x-2)=0
x = 1 or 2
the original number is 15 or 24 (2 possible answers)
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Trial and error
Date Posted:
4 years ago
for secondary level, students should be trying to form proper equation and solve equation.
Thanks
360 Tutoring Program