A person crosses a 1800 m long street in 12 minutes.

A person crosses a 1800 m long street in 12 minutes. What is his speed in km per hour?

Answer/Solution

9

Steps/Work

Speed = 1800/(12x60) m/sec
= 2.5 m/sec.
Converting m/sec to km/hr =2.5 x(18/5) km/hr
= 9 km/hr.
ANSWER :E

Physics Calculator / Auto Solver

A person crosses a m long street in minutes. What is his speed in km per hour?

Calculated Answer

9

Step by Step Solution

In order to solve problem, you must evaluate (n₀ / 1000) / ((n₁ * 60) / 3600).

n₀ =	1800
n₁ =	12

(n₀ / 1000) / ((n₁ * 60) / 3600)
Evaluate n₀ / 1000 = 1.8
1.8 / ((n₁ * 60) / 3600)
Evaluate n₁ * 60 = 720
1.8 / (720 / 3600)
Evaluate 720 / 3600 = 0.2
1.8 / 0.2
Evaluate 1.8 / 0.2 = 9
9
The answer to the problem and the result of (n₀ / 1000) / ((n₁ * 60) / 3600) is 9