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primary 6 | Maths
| Fractions
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Date Posted: 4 years ago
Views: 412
at first
bottles: 18u
after 12 days
used: 12u
left: 6u
1 day used 1u
after 14 days
used: 12u+6u-200 = 18u -200
left: 200 mL
2 days used 6u-200
so
1u = 3u - 100
1u = 100/2 = 50
total at first = 50 . 18 = 900 mL
(a)
Fraction = 50/900 = 1/18
(b)
total at first = 900 mL
.
.
.
bottles: 18u
after 12 days
used: 12u
left: 6u
1 day used 1u
after 14 days
used: 12u+6u-200 = 18u -200
left: 200 mL
2 days used 6u-200
so
1u = 3u - 100
1u = 100/2 = 50
total at first = 50 . 18 = 900 mL
(a)
Fraction = 50/900 = 1/18
(b)
total at first = 900 mL
.
.
.
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