11-08-2014
Mathematics

Answered

There were 28 white ducks swimming in a pond.
• Twice as many brown ducks flew in and landed in the pond.
• Then half of the white ducks flew away.
How many ducks remained in the pond?

Answer :

Аноним Аноним

11-08-2014

28 white ducks swimming in pond
2*(28 white ducks) = 56 brown ducks flew and landed in pond
(28 white ducks)/2 = 14 white ducks remained in the pond

Ducks remaining in the pond (at this point):
(14 white ducks) + (56 brown ducks) = 70 ducks in all

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