Answer to Q175
There are 100 pairs of dogs in a zoo; a pair of babies are born for each dog. Unfortunately, 23 of the dogs have not survived. How many dogs are left in total?
100 pairs of dogs = 100 x 2 = 200 dogs
a pair of babies are born for each dog
That is, each dog has 2 babies. Each of them has apair of babies NOT a pair has pair of babies
= 200 x 2
= 400 babies
Unfortunately, 23 of the dogs have not survived.
= 400 - 23
= 377 babies left
Total dogs = 200 dogs + 377 babies
Answer: 577 dogs
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