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Secondary 1 | Maths
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Date Posted: 4 years ago
Views: 277
5 people : 20 buns in 3 min 20 seconds
3 min 20 secs = 3 20/60 min = 3⅓ min
20 buns ÷ 3⅓ min = 6 buns/min
So 5 people can finish 6 buns per min.
In 5 minutes,
6 buns/min x 5min = 30 buns
5 people can finish 30 buns.
Now 10 ÷ 5 = 2
10 people is twice of 5 people. So 10 people can finish twice as fast as 5 people.
30 buns x 2 = 60 buns
10 people can finish 60 buns in 5 mins.
3 min 20 secs = 3 20/60 min = 3⅓ min
20 buns ÷ 3⅓ min = 6 buns/min
So 5 people can finish 6 buns per min.
In 5 minutes,
6 buns/min x 5min = 30 buns
5 people can finish 30 buns.
Now 10 ÷ 5 = 2
10 people is twice of 5 people. So 10 people can finish twice as fast as 5 people.
30 buns x 2 = 60 buns
10 people can finish 60 buns in 5 mins.
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This is my solution.
Date Posted:
4 years ago
Thanks you
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