I've been thinking of this math problem for days and wanting to share it. So finally I decided to do it. 

Here it is. 

The problem:

A chicken wants to cross the road. Her speed is 2.5 meters per minute. 

And the road from side to side is 1.8 meters. 

The road has one line only and is meant for bicycles. 

The closest bicycle is 18 meters away. 

And is going at a speed of 24 meters per minute. 

Can you solve it before looking at the answer? 

Answer:

Chicken speed: 2.5 meters per minute. 

Road length from side to side: 1.8 meters. 

Closest bicycle: 18 meters away. 

Going at a speed of 24 meters per minute. 

First let's see how much time the chicken needs to cross the road. 

2.5 ==> 1 

1.8 ==> x 

1.8 = 2.5 x 

X = 1.8 / 2.5 

X = 0.72 

Or: 

t = distance ÷ speed 

t = 1.8 / 2.5 

t = 0.72 minutes. 

1 minute = 60 seconds. 

0.72 × 60 = 43.2 seconds 

It needs 43.2 seconds to cross the road. 

Every minute 24 meters. 

24 ==> 1 minutes 

18 ==> X 

24 X = 18 × 1 

X = 18 / 24 

X = 0.75 

Or: 

t = distance ÷ speed 

t = 18 / 24 

t = 0.75 

0.75 × 60 = 45 seconds. 

The bicycle needs 45 seconds to arrive. 

Difference:

45 - 43.2 = 1.8 seconds 

So the chicken finishes crossing 1.8 seconds before the bicycle arrives.

So the chicken will cross the road safely. 

Conclusion:

I think this math problem is fun and a way to think out of the box. And most importantly, sharpening our mathematics skills. And I think it's also fun.