Q:the 90 men that visit retaurant take one of either pounded yam,rice and amala.10 take pounded yam and rice,19 take rice and amala,29 take pounded yam and X men take all the three menu.2X men take only one food item. how many men take: 1. exactly two of the food items
2. All three food items
3.atleast two of the food items
4. Atmost three food items
5. Rice and amala
6. Pounded yam only
7. Amala only
2x - (10+19+29) - x = 90
x = 138
Now finish it off