PPSC Past Papers Punjab Enforcement and Regulatory Authority, | By

If 1/5 of the keyboards are not working out of a total of 3,000, how many keyboards are working?

A. 1000
B. 1500
C. 2000
D. 2400
Correct Answer: D. 2400
Explanation: 1/5 of 3,000 = 600 not working; 3,000 − 600 = 2,400 working keyboards.

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