There are few items which we have to put items in boxes.if 3
items put in each box,1 item left outside.if 4 items put in
each box,1 item left outside.if 5 items put in each box,1
item left outside.if 6 items put in each box,1 item left
outside.if 7 items put in each box,0 item left outside.how
many number of item are there?

Answer Posted / vijay

Answer is 301..

3 - 100 boxes - 1 left
4 - 75 boxes - 1 left
5 - 60 boxes - 1 left
6 - 50 boxes - 1 left
7 - 43 boxes - 0 left

Solution:
3,4,5,6 - 1 left & 7 - 0 left - (ie) - least common multiple
of 3,4,5,6 + 1 which is divisible by 7.

the least common multiples are: 60,120,180,240,300
61 - not divisible by 7
121 - not divisible by 7
181 - not divisible by 7
241 - not divisible by 7
301 - divisible by 7

hence 301 is the answer

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