Can anyone pls help me asap thanks

Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

Question

primary 5 | Maths | Rate & Ratio
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

primary 5 Maths Rate & Ratio Singapore

Can anyone pls help me asap thanks

Date Posted: 4 years ago

Comments 0 add a comment

See 1 Answer

First Hour
Answered : Unanswered : Total Questions
2 : 3 : 5

By next half hour,
Answered : Unanswered : Total Questions
7 : 3 : 10

Note that the total questions should be the same for both instance. Hence we multiply the first set of ratio by 2 so that it becomes as follows,

Answered : Unanswered : Total Questions
4 : 6 : 10

Once the units of the Total Qns are the same, we can compare the 2nd set of ratio, with the 3rd set of ratio. We can also see that the units of Answered Qns have reduced by 3.

Therefore, 15 questions are represented by 3 units. 1 unit is 5. Total Qns is 10 units, 50 questions.

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes