Câu 1.
It requires 24 minutes to cut a piece of wood into 7 sections. If the time required to cut one piece of wood into two sections is the same every time, how many minutes are required to cut a piece of wood into 14 sections?
- A.44
- B.48
- C.52
- D.56
Một vài câu trong đề — toàn bộ đề có 25 câu, làm bài trên app thi thử.
Câu 1.
It requires 24 minutes to cut a piece of wood into 7 sections. If the time required to cut one piece of wood into two sections is the same every time, how many minutes are required to cut a piece of wood into 14 sections?
Câu 2.
There is a total of 50 animals including chickens and rabbits in a farm. The animals have a total of 158 legs. How many chickens are there?
Câu 3.
Edward has 68 marks and Julie has 21 marks in a Mathematics exam. If the average mark of Edward, Julie and Mary is 34, what is Mary's exam mark?
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