Question

The numbers 1,5, 8, 9, 10, 12 and 15 are distributed into groups with one or more numbers. The sum of the numbers in each group is the same. what is the largest number of groups?
a) 2
b)3
c)4
d)5
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Answer 1

Answer:

So, the largest number of groups will be 3

Step-by-step explanation:

There will be three groups and the sum of all the numbers in any of the groups will be  = 20

the three groups are

i) 15 and 5

ii) 12 and 8

iii) 10, 9 and 1