Question

a cylindrical well is of 3.5 feet above ground , water level is 7 feet below ground level .if thevol of water is 1/2 of the vol of well find total height of well

Answer 1

$vol \: of \: well = 2(vol \: of \: water) \\ let \: height \: of \: water \: be \: x \: meters \\ then \: height \: of \: well \: is \: 2x \: meters \\ \\ \pi {r}^{2} h1 =2 \times \pi {r}^{2} h2 \\ \\ h1 = 2 \times h2 \\ x = 2x \\ x = 2 \times 7 \\ x = 14meters \\ hope \: it \: helps$
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Answer 2

ur answer is 14 m dear