Rambhau started the water pump at ten-thirty at night and put it off the same night at a quarter to twelve. How long was the water pump on?
Quarter to 12 is 11:45 pm
|1 1||4 5||Water pump put off|
|- 1 0||3 0||Pump started|
∴ The pump was on for 1 hour 15 minute.
Concept: Examples of Time Measurement
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