A river is 80 metre wide. The depth ‘d’ in metres at a distance ‘x’ metres from one bank is given, by the following table:X:01020304050607080D:047912151483Hence the area of c / s of the river using Simpson’s rule is:

A river is 80 metre wide. The depth ‘d’ in metres at a distance �

1.	A river is 80 metre wide. The depth ‘d’ in metres at a distance ‘x’ metres from one bank is given, by the following table:X:01020304050607080D:047912151483Hence the area of c / s of the river using Simpson’s rule is:
A.	713 sq. met.
B.	710 sq. met.
C.	715 sq. met.
D.	716 sq. met.
Answer» C. 715 sq. met.