Free ACT Practice Question

Question 1 of 1
ID: ACT-M-75
Section: Math
Topics: Integrating Essential Skills; Word Problems
Difficulty level: Medium

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During $t_1$ hours in the morning, customers arrive at a bank at the rate of $r_1$ per hour, and during $t_2$ hours in the afternoon, customers arrive at a bank at the rate of $r_2$ per hour. What is the average rate of arrival in customers per hour to the bank during the whole day?

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