Q: Darwin has 600$. He spent 1/3 of it on gas for his car, and 1/4 of what was left on food. How much money did he have left?
A: 600 / 3 = 200$ for gas. After buying gas, Darwin has 600 - 200 = 400$ left. 400 / 4 = 100$ on food. Darwin has 400 - 100 = 300$ left. The answer is 300.

Q: In the garden, the gecko eats 12 bugs. The lizard eats half as many bugs as the gecko. The frog eats 3 times as many bugs as the lizard. The toad eats 50% more bugs than the frog. How many bugs are eaten in total by all of them?
A: Lizard eats 12 / 2 = 6 bugs. Frog eats 6 x 3 = 18 bugs. Toad eats 18 x 1.50 = 27 bugs. The lizard, frog and toad eat 6 + 18 + 27 = 51 bugs. Adding what the gecko eats, a total of 12 + 51 = 63 bugs are eaten. The answer is 63.

Q: Denny, an Instagram influencer, has 100000 followers and gets 1000 new followers every day. How many followers will he have if 20000 people unfollowed him in a year?
A:
The total number of new followers after a year is 365 * 1000 = 365000 followers. His total number of followers in a year is 100000 + 365000 = 465000 followers. If 20000 people unfollowed him, the total number of followers remaining is 465000 - 20000 = 445000 followers. The answer is 445000.