Sharko had 13 sweets, and his younger brother had 11 more sweets than Sharko.
To find out how many sweets his younger brother had, we can add 11 to the number of sweets Sharko has:
Younger brother's sweets = Sharko's sweets + 11 Younger brother's sweets = 13 + 11 = 24
Now, to find out the total number of sweets they had together, we add the number of sweets they both have:
Total sweets = Sharko's sweets + Younger brother's sweets Total sweets = 13 + 24 = 37
So, they had a total of 37 sweets together.