Question

If it takes 5 elves 5 minutes to make 5 dolls, how long would it take 100 elves to make 100 dolls?

Answer 1

5 elves*5 minutes=5 dolls
1 elf *5 minutes=1 doll

so it takes 5 minutes for an elf to make doll

100 elves*100 minutes/5=100*20=2000 dolls in 100 minutes by 100 elves

Answer 2

It takes 100 elves 5 minutes to make 100 dolls.

Given that it takes 5 elves 5 minutes to make 5 dolls, we need to find the time it takes 1 elf to make a doll.

So, 5 elves make 5 dolls in 5 minutes, then 1 elf makes x dolls in 5 minutes.

Using the unitary method,

So, 1 elf makes 5 dolls/5 in 5 minutes.

So, 1 elf makes 1 doll in 5 minutes.

So, 100 × 1 elf makes 100 × 1 doll in 5 minutes.

So, 100 elves will makes 100 dolls in 5 minutes.

So, it takes 100 elves 5 minutes to make 100 dolls.

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