There was 10 children at the party. 3 of them was 5, 4 of them was 10, and 3 of them was 7. At the party there was cookies. Each age had a different amout of cookies the five year olds have 10 all together the 10 year olds had 11 cookies all together and the 7 year olds had 8 cookies all together. How much cookies did they eat in all??
I hope this helps and if it does not I will write you another one:)