Concept explainers
Find how long would it take both computers to do the processing.
Answer to Problem 3ST
Explanation of Solution
Given:
One computer can process a payroll in
Calculation:
Let both the computers can do the processing together in t hours.
Let the whole work = 1
One computer does processing alone in 6 hours.
So, in 1 hour , the processing it does =
So, in t hours , the processing it does =
The old computer does processing alone in 7.5 hours.
So, in 1 hour, the processing it does =
So, in t hours , the processing it does =
So, both the computers together complete work in t hours =
and the whole work is 1.
So,
So, both the computers do processing in
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Algebra and Trigonometry: Structure and Method, Book 2
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