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primary 6 | Maths
| Ratio
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Date Posted: 4 years ago
Views: 212
Total unchanged.
Total units = 5 + 7 = 12
Since they had equal amount of $ at first,
number of units should be the same at first.
12 units ÷ 2
= 6 units
Ratio for Before = 6 : 6
Ratio for After = 5 : 7
So we can see that Abdul gave 1 unit to Ben
So 30 stickers = 1 unit
Both had 6 units each at first.
6 x 30 = 180
So Abdul had 180 stickers at first
(And so did Ben)
Total units = 5 + 7 = 12
Since they had equal amount of $ at first,
number of units should be the same at first.
12 units ÷ 2
= 6 units
Ratio for Before = 6 : 6
Ratio for After = 5 : 7
So we can see that Abdul gave 1 unit to Ben
So 30 stickers = 1 unit
Both had 6 units each at first.
6 x 30 = 180
So Abdul had 180 stickers at first
(And so did Ben)
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