Level 3
There are 200 more teachers in School X than in School Y. After 25% of the teachers left School X and 50% of teachers left School Y, the number of teachers who remained in School X is thrice that of the number of teachers in School Y. Find the number of teachers in School X at first.

Level 3
There are 25% more red crayons than blue crayons in a bag. After John removed 40% of the red crayons and increased the number of blue crayons by 10%, there are now 70 fewer red crayons than blue crayons. Find the number of blue crayons at first.

Level 3
Natalie sold lavenders and tulips in her shop on Mother's Day. 70% of the flowers she sold on that day were lavenders and she sold 81 tulips.

1. What was the total number of flowers sold?
2. 10% of the flowers in the shop were sold on that day. 10% of the flowers left were tulips. How many tulips were left?

Level 3
A philanthropist bought a total of $19380 worth of toys, textbooks and clothes to donate to the needy children. The number of clothes bought was 20% more than the number of toys bought but 20% fewer than the number of textbooks bought. The toy cost $12 each and was $2 more expensive than each textbook but 40% cheaper than each piece of clothes. How many toys and textbooks did the philanthropist donate to the needy children?

Level 3
Tammy baked 420 pies. 40% of them were peach pies. How many more peach pies must Tammy bake so that 80% of her pies are peach pies?