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Nuetrik [128]
3 years ago
15

if three bakers can  prepare 15 cakes in 60 minutes, how long will it take six bakers working at the same rate to prepare 20 cak

es?
Mathematics
1 answer:
ella [17]3 years ago
3 0
-- 3 bakers produce 15 cakes in 60 minutes.

-- Each baker produces 15/3 = 5 cakes in 60 minutes.

-- Each baker takes 60/5 = 12 minutes to produce 1 cake.

-- 6 bakers can produce  6  cakes in  12  minutes.

-- 20 cakes will take 20/6 = (3 and 1/3) as much time as  6 cakes.

-- (3 and 1/3) times  12 minutes = <em>40 minutes</em>.

================================================

An easier way to do it:

-- 3 bakers produce 15 cakes in 60 minutes.

-- 6 bakers could produce 30cakes in 60 minutes.

-- Only 20 cakes are needed. That's only  (20/30) = 2/3 of 30 cakes.

-- So it will only take them  2/3 of 60 minutes = <em>40 minutes</em> to make them.
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