The zookeeper feeds all the apes in the zoo. He orders all the bananas from a local farm every 2 months. If the monkeys need 200 bananas, the gorillas need 400 bananas, and the baboons need 100 bananas every month, how many bananas does he need to order to last for 2 months?

Answer: The zookeeper needs to order 1400 bananas to last for 2 months.

Step-by-step solution

Step 1: Calculate total bananas needed per month

First, we need to find out the total number of bananas required for all the apes in one month. We will sum up the individual monthly requirements for monkeys, gorillas, and baboons.

Step 2: Substitute monthly banana requirements

We are given that monkeys need 200 bananas, gorillas need 400 bananas, and baboons need 100 bananas per month. We substitute these values into the equation from the previous step.

Step 3: Perform addition for monthly total

Adding the numbers, $200 + 400 + 100 = 700$ . So, the apes together need 700 bananas every month.

Step 4: Calculate total bananas needed for 2 months

Since the zookeeper orders bananas every 2 months, we need to calculate the total quantity required for a 2-month period. We will multiply the monthly requirement by 2.

Step 5: Substitute values for 2-month total

We use the total monthly requirement of 700 bananas and multiply it by 2, as the order needs to last for two months.

Step 6: Perform multiplication for final total

Multiplying $700$ by $2$ , we get $1400$ . This is the total number of bananas the zookeeper needs to order to last for 2 months.

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