7-4=3 (difference of 3 sweets given)
For a difference of 3 sweets, total sweets needed:
17-2=15
15 sweets need for each friend having 3 more sweet, hence the number of John friend:
15/3=5
If John give each friends 4 sweets:
5x4=20
However John is short of 2 sweets (needs 2)
20-2=18
Therefore, John has 18 sweets
John has some sweets to give to his friends. If he gives 4 sweets to his friends, he will need 2 more sweets. If he gives 7 sweets to each friend, he will need 17 sweets. How many friends does John have? How many sweets does John have?
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