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primary 6 | Maths
| Ratio
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Date Posted: 4 years ago
Views: 295
nos
$5: 1u
$10: 3u
value
$5: 5u
$10: 30u
total = 35u
30u = 5u + 400
1u = 400/25 = 16
(a)
48
(b)
$560
$5: 1u
$10: 3u
value
$5: 5u
$10: 30u
total = 35u
30u = 5u + 400
1u = 400/25 = 16
(a)
48
(b)
$560
See 1 Answer
$5 voucher - 1unit
$10 voucher - 3 units
(a) difference = 2 units
2u - $400
1u - $400/ 2
= $200
3u - $200 * 3
= $600
Answer: $600
(b)
Total no of voucher = 3 + 1
= 4 units
4u = $200 * 4
= $800
Answer: $800
$10 voucher - 3 units
(a) difference = 2 units
2u - $400
1u - $400/ 2
= $200
3u - $200 * 3
= $600
Answer: $600
(b)
Total no of voucher = 3 + 1
= 4 units
4u = $200 * 4
= $800
Answer: $800
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