Q 1659091814.     `AD` is the diameter of a circle with area `707m^2`
and `AB = BC = CD` as shown in
the figure. All curves inside the
circle are semi-circles with their
diameters on `AD`. What is the
cost of levelling the shaded
region at the rate of `rs63` per `m^2` `?`

CDS 2016
A

`rs 29700`

B

`rs 22400`

C

`rs 14847`

D

`text(None of these)`

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