Wanda weighs 30 pounds more than Yola currently. Wanda also weighs 80 pounds more than Yola did 2 years ago. How much did Yola weigh 2 years ago if she currently weighs 220 pounds? Give the rationale and then the answer.
Let's think step by step. If Yola currently weighs 220 pounds, then Wanda, who weighs 30 pounds more than Yola, weighs 220 + 30 = 250 pounds. Wanda also weighs 80 pounds more than Yola did 2 years ago, meaning Yola weighed 250 - 80 = 170 pounds 2 years ago.. The answer is: 170.

Tamara is 3 times Kim's height less 4 inches. Tamara and Kim have a combined height of 92 inches. How many inches tall is Tamara? Give the rationale and then the answer.
Let's think step by step. Let K = Kim's height. Tamara = 3K - 4. K + 3K - 4 = 92. 4K - 4 = 92. 4K = 96. Kim = 24 inches. Tamara = (3 * 24) - 4 = 68 inches. Tamara is 68 inches tall.. The answer is: 68.

A zoo has 8 parrots. It 3 times the number of snakes than parrots and 2 times the number of monkeys than snakes. The number of elephants is half the number of parrots and snakes added up, and there are 3 fewer zebras than elephants. What is the difference in number between the zebras and the monkeys? Give the rationale and then the answer.
Let's think step by step. The zoo has 8 x 3 = 24 snakes. It has 24 x 2 = 48 monkeys. The number of parrots and snakes added up is 8 + 24 = 32. There are 32 / 2 = 16 elephants. There are 16 - 3 = 13 zebras. The difference between zebras and monkeys is 48 - 13 = 35.. The answer is: 35.