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Step-by-step explanation:
The time taken by steam engine=4hr25mim. hours into minutes
1hr = 60 minutes
4 hr 25 min= 4×60+25=240+25=265min
The time taken by electric engine=25%of265=25÷100×265=66.25
time electric engine takes=265min-66.25min=198.75
minutes into hours
60 min=1hr
198.75min=198.75÷60=3hr31min approx.
Answer Electric engine takes (3hr31min) approx
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