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primary 6 | Maths | Measurement
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Cshjwrk
Cshjwrk

primary 6 chevron_right Maths chevron_right Measurement chevron_right Singapore

Hi pls help thx

Date Posted: 4 years ago
Views: 391
AC Lim
AC Lim
4 years ago
Common multiple of 90 and 120 = 360
Machine A, 90 mins→360u
Therefore 1min = 360u÷90 = 4u

Machine B , 120 mins→ 360u
Therefore, 1min = 360÷120 = 3u

Given, 1 min faster machine print 6 more pages.
So, 4u-3u=6,
1u = 6
Total for each machine = 360u = 360×6 = 2160 pages
Total for both machines = 2160×2 = 4320 pages.

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Christmas MT
Christmas Mt's answer
3807 answers (A Helpful Person)
lmk if you dont understand the working
Christmas MT
Christmas MT
4 years ago
answer is 2160x2 so 4320
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sstrike
Sstrike's answer
5657 answers (A Helpful Person)
【Rate - total unchanged】

90:120 = 3:4

3×4u = 4×3u = 12u

90×4u = 120×3u = 90×4×6 = 2160
2×2160 = 4320 (Ans)
Common multiple of 90 and 120 = 360
Machine A, 90 mins→360u
Therefore 1min = 360u÷90 = 4u

Machine B , 120 mins→ 360u
Therefore, 1min = 360÷120 = 3u

Given, 1 min faster machine print 6 more pages.
So, 4u-3u=6,
1u = 6
Total for each machine = 360u = 360×6 = 2160 pages
Total for both machines = 2160×2 = 4320 pages.
done 1 Upvotes
clear 0 Downvotes
AC Lim
Ac Lim's answer
13250 answers (A Helpful Person)