Answer :
Length of the canal = 4km/hr × hr [Distance = Speed × Time]
⸫ Length =
Given, width = 6 m, depth = 1.5 m
Volume of water flowing in the canal = l × b × h = × 6 × 1.5
= 6000 m3
Height of standing water = 8 cm = m
⸫ Area for irrigation =
=
= 75000 m2
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