Question

For a race of 1540 m, number of rounds one have to take on a circular track of radius
35 m​

Answer 1

Answer:

No. of rounds = 1540 / (2 × 22/7 × 35)

= 1540/220

= 7

Answer 2

Answer:

✳ Seven Rounds must be made around a circular track of radius 35 m​ for a race of 1540 m.

✩SOLUTION✩

Radius of the track = 35m.

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Total distance to be covered = 1540 m.

$\sf Total \; number \; of \; rounds \; one\; have \; to \; take = \dfrac{Total \: Distance\: to \: be \: covered \: during \: the \: race}{Circumference \: of \: the \: Circular \: Track}$

Circumference of The Circle

Here,

Radius(r) = 35m.

$\sf Circumference \; of \; the \; Circular \; Track = 2 * \dfrac{22}{7} *3 5$

$\implies$

Circumference of the Circular Track = 2 × 22 × 5 = 220m.

Number of Rounds

$\sf Total \; number \; of \; rounds \; one\; have \; to \; take = \dfrac{Total \: Distance\: to \: be \: covered \: during \: the \: race}{Circumference \: of \: the \: Circular \: Track}$

Here,

Total Distance to be covered during the race = 1540m.

Circumference of the Circular Track = 220m.

$\implies$

$\sf Total \; number \; of \; rounds \; one\; have \; to \; take = \dfrac{1540}{220}$

✩ Total number of rounds one have to take = 7 rounds.