Question

简单的英文版数学题

1) Find the largest number which when divided into 65 and 112 will leave remainders 5 and 7 respectively.

2) Three heaps of groundnuts weighing 42 kg, 70 kg and 98 kg respectively are to be packed into equal bags. If these bags are as large as possible and no ground nuts are left over, how much is put into each bag?

3) The operation y means double the first number and add the second number to the result. Hence solve the following:
a) 2 y 4, b) 4 y 13, c) 7 y 13

4) Write down the members of the set of even numbers between 28 and 46 exclusive.

5) Determine the set of odd numbers greater than 31 but less than 49

Answer 1

1) They can be devided into 13 groups and 16 groups.
2)70 kg in each bag.
3) a)According to the question, the formula is 2a +b
So ,a)2 y 4=2x2+4=8
b)4 y 13=4x2+13=21
c)7 y 13=14+13=27
4)Even numbers:28, 30,32,34,36,38,40,42,44,46
5)Odd numbers:31 , 33 , 35 , 37 , 39, 41 ,43 ,45 ,47 ,49

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