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Câu hỏi 5
The members of a family of kangaroos are 4, 5, 6, 8, 10 and 11 years old.
Four of them are 28 years old when added together.
How old are the other two kangaroos?
4 5 6 8 10 11
A. 6 and 8 or 4 and 5
OB. 6 and 10 or 5 and 11
Oc. 4 and 5 or 8 and 10
OD. 5 and 8 or 6 and 11
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