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Question
primary 5 | Maths
| Fractions
One Answer Below
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Date Posted: 4 years ago
Views: 422
at first
$1-notes: 1u
$2-notes: 4u
after
$1-notes: 1u+40
$2-notes: 4u-20
1u + 40 = 4u - 20
1u = 20
total value = $180
.
.
.
$1-notes: 1u
$2-notes: 4u
after
$1-notes: 1u+40
$2-notes: 4u-20
1u + 40 = 4u - 20
1u = 20
total value = $180
.
.
.
See 1 Answer
At first:
$1 note: 1 unit
$2 note: 4 units
After:
$1 note: 1 unit + 40
$2 note: 4 units - 20
1 unit + 40 = 4 units - 20
3 units = 60
1 unit = 20
Total value of notes = ($1 X 20) + ($2 X 4 X 20) = $20 + $160 = $180
$1 note: 1 unit
$2 note: 4 units
After:
$1 note: 1 unit + 40
$2 note: 4 units - 20
1 unit + 40 = 4 units - 20
3 units = 60
1 unit = 20
Total value of notes = ($1 X 20) + ($2 X 4 X 20) = $20 + $160 = $180
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