Question

rectangular water tank is 90 cm wide 40 cm deep it contain 576 litre of water what is the length

Answer 1

given that
b=90cm = 0.9m
h = 40 cm = 0.4m
water amount = 576 litre = 0.576 m3 (1m3 = 1000l)
thus
vol. = l.b.h
so
0.576 = 0.9*0.4*l
thus
l = 1.6m = 160 cm

Answer 2

Here take L= x
B= 90
H= 40


Now, L X B X H = 576
.*. L X 90 X 40 = 576
.*. L = 576/9x4x100. [ here 90 X 40 = 9 X 4 X 100 is taken ]
.*. L = 16/100
.*. L = 0.16 cm

Hence we get L = 0.16


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