A group of 30 tourists sets out on a walking tour of the rainforest. Two tourists are eaten by anacondas, then half the remaining tourists try to pet poisonous dart frogs and get poisoned. If only 1/7 of the poisoned tourists recovered, how many tourists are left at the end of the tour? Give the rationale and then the answer.
Let's think step by step. First, subtract the two tourists the anacondas got from the initial 30 tourists: 30 - 2 = 28. Next, divide 28 by two to find out how many tourists got poisoned: 28 / 2 = 14. Now figure out how many of the 14 poisoned tourists recovered: 14 / 7 = 2. The total number of surviving tourists is 14 + 2 = 16.. The answer is: 16.

Safari National park has 100 lions, half as many snakes, and 10 fewer giraffes than snakes. On the other hand, Savanna National park has double as many lions as Safari National park, triple as many snakes as Safari National park, and 20 more giraffes than Safari National park. How many animals in total does Savanna National park have? Give the rationale and then the answer.
Let's think step by step. Safari National park has 1 / 2 * 100 = 50 snakes. Safari National park has 50 - 10 = 40 giraffes. Savanna National park has 100 * 2 = 200 lions. Savanna National park has 50 * 3 = 150 snakes. Savanna National park has 40 + 20 = 60 giraffes. Savanna National park has a total of 200 + 150 + 60 = 410 animals.. The answer is: 410.

Ginger owns a flower shop, where she sells roses, lilacs, and gardenias. On Tuesday, she sold three times more roses than lilacs, and half as many gardenias as lilacs. If she sold 10 lilacs, what is the total number of flowers sold on Tuesday? Give the rationale and then the answer.
Let's think step by step. With 10 lilacs sold, three times more roses than lilacs is 3 * 10 = 30 roses. Half as many gardenias as lilacs is 10 / 2 = 5 gardenias. In total, there were 10 + 30 + 5 = 45 flowers sold on Tuesday.. The answer is: 45.