Question

3. The inner circumference of a circular park
is 440 m. The track is 14 m wide. The
diameter of the outer circle of the track is
(a) 168 m
(b) 169 m
(c) 144 m
(d) 108 m​

Answer 1

Answer:

$\fbox{\LARGE{\underline{\underline{\pink{\bf{Question}}}}}}$

The inner circumference of a circular park

is 440 m. The track is 14 m wide. The

diameter of the outer circle of the track is

(a) 168 m

(b) 169 m

(c) 144 m

(d) 108 m

$\fbox{\LARGE{\underline{\underline{\pink{\bf{Solution}}}}}}$

Inner Circumference of a Park=2πr

2πr=440m

r=440×7/22×2

r=70m

Width of track=14m

Radius of outer circle =(70m+14m)

= 84m

Diameter of Outer Circle=2×84m

=168m

Hence, Option (a) is Correct

$\fbox{\LARGE{\underline{\underline{\pink{\bf{Answer=168m}}}}}}$

$\huge{\underline{\underline{\tt{\blue{Option\ A\ 168m\ is\ Correct}}}}}$