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Question
primary 6 | Maths
| Ratio
2 Answers Below
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Date Posted: 2 years ago
Views: 432
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(a). $156 - $12 = $144
Amount of money spent on spoons
= $144/2
= $72
(b). Amount of money spent on forks
= $156 - $72
= $84
Or
$72 + $12 = $84
$72/3 = $24
$84/4 = $21
Difference in cost between per
unit
= $24 - $21 = $3
$3/$0.50 = 6
3u + 4u
= 7u
Total number of forks and spoons bought
= 6 x 7
= 42
Amount of money spent on spoons
= $144/2
= $72
(b). Amount of money spent on forks
= $156 - $72
= $84
Or
$72 + $12 = $84
$72/3 = $24
$84/4 = $21
Difference in cost between per
unit
= $24 - $21 = $3
$3/$0.50 = 6
3u + 4u
= 7u
Total number of forks and spoons bought
= 6 x 7
= 42
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