On Sunday, Sheldon bought 3 and 1/2 kg of plant food. He used 1 and 2/3 kg on his strawberry plants and used 1/4 kg for his tomato plants. How many kg of plant food did Sheldon have left?
1 and 7/12
15
Sheldon wants to feed his strawberry plants 2 more times and his tomato plants two more times. He will use the same amounts of plant food as before (strawberry=1 and 2/3; tomato=1/4). How much plant food will he need?
He will need 3 and 5/6 kg to feed them two more times. So, no he will not have enough left to do this.