Question

Однажды я посетил террариум с разными змеями и ящерицами. Всего я насчитал 27 голов и 70 ног,причём ящериц было в 2 раза больше чем людей.Сколько ящериц если у них 4 ноги,и сколько людей если у них 2 ноги,и сколько змей

Answer 1

7 человек
14 ящериц
6 змей

Answer 2

Calculating the Number of Lizards, Humans, and Snakes

It seems like you had an interesting experience at the terrarium! Let's calculate the number of lizards, humans, and snakes based on the information provided.

Given: - Total number of heads = 27 - Total number of legs = 70 - The number of lizards was twice the number of humans

Let's solve this step by step.

1. Calculating the Number of Lizards and Humans: - Let's assume the number of humans as 'H' and the number of lizards as 'L'. - Each human has 2 legs, and each lizard has 4 legs. - We can create the following equations based on the given information: - H + L = 27 (total number of heads) - 2H + 4L = 70 (total number of legs)

Solving these equations will give us the values of H and L.

Using the above equations, we can calculate the number of lizards and humans.

Calculation: - H + L = 27 - 2H + 4L = 70

Solving these equations gives: - H = 7 (number of humans) - L = 20 (number of lizards)

So, there were 20 lizards and 7 humans.

2. Calculating the Number of Snakes: - We know the total number of heads (27) and the number of lizards (20) and humans (7). - We can calculate the number of snakes by subtracting the total number of heads from the sum of lizards and humans.

Calculation: - Total number of heads = 27 - Number of lizards (L) = 20 - Number of humans (H) = 7 - Number of snakes = Total number of heads - (Number of lizards + Number of humans) - Number of snakes = 27 - (20 + 7) = 0

It seems that there were no snakes in the terrarium.

So, based on the given information, there were 20 lizards, 7 humans, and 0 snakes in the terrarium.