Pavan had 60 chocolates. He gave away 10 chocolates to Herman. Herman already had 55 chocolates.
How many more chocolates does Herman have now than Pavan?
15
Pavan had 60 chocolates. He gave 10 to Herman, so he is left with 50 chocolates. Herman already had 55 chocolates, now he got 10 more from Pavan, so he has 65 chocolates in total.
So, 65 - 50 = 15.
Herman now has 15 more chocolates than Pavan.