18 bighas of land may be irrigated in 8 days by a shallow tube-well pump working 15 hours per day. How many days will it take to irrigate 21 bighas of land by operating the pump 10 hours per day?
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Answer:
14 days
Step-by-step explanation:
irrigated 18 bighas in : 8*15 hours
irrigated 1 bighas in. : 8*15/18 hours
irrigated 21 bigad in. : (8*15/18)*21
: 140 hours
in 10 hours per day. : 140/10 days
: 14 days
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