Fun that mathematical analysis

The distance between the bank

Two vessels left the river at the same time the two sides, one from A to drive to B, another one from the B-bound A, which opened a faster than another, so close to their distance from the shore 500 Km met. After the scheduled landing sites, each vessel must stay 15 minutes, so that the passenger ship from top to bottom, and then they return. The two ferries in the 100 km away from the other shore, re-encounter. So how wide the river

Analysis and answers

When the two met at the ferry in x, they coast 500 km away from A, this time they traversed the distance sum equivalent to the width of the river. When they arrived at the other side when the two sides, has taken a total length equal to twice the Hekuan. In return, they met in z point, when two ships traversed the distance and Hekuan equivalent to three times, so every now are taking a ferry should be equal to the distance between the first encounter when they are moving in the distance Three times. In the first two ships met, it is a ferry go 500 kilometers, so when it arrived at z point, has gone the distance three times, that is 1,500 km, the distance from the river than the width of more than 100 km. Therefore, the width of the river for 1,400 km. Each of the ferry vessel, the passengers time to answer no impact.

Variable exchange

Do not use any other variables, the exchange of a, b variable values

Analysis and answers

a

Walking time

A company office building in the city centre, and the president of Winston s home in the suburbs of a small town near. Every time he is after work by the same train back to the outskirts of town. Town stations are some distance from home, his private drivers always at the same time open to cars from home to home town station next president.

Guiwang higher overall points.

1: Introduction ..

Like bored from top to bottom Forum. .. But this is enjoyment. Of what some people say what their own study on what kind of misleading the new .. carefully and think of your point is very bad .. unless you think after 90 .. I was re-washing 2, Royal Yan Lei of the cold wind into the subject … Guiwang increase the ultimate curse of the flash point … far point. I call to the world of mouth curse you … He died

1: to understand: This is a game to 90 very quickly … 2 .. that is to say under the weight of the basic skills of the future should not even think about using the word … 2 .. transition …

2: The offensive skills will eventually be eliminated next attack skills ..

3: supporting a permanent state of the …

4: Gui Wang s status is the worst possible remedy …

5: This is a plus point of people practicing less than 90 or 90 is very remote for people who do not have to read .. no nonsense.

6: nothing to us under the 90 Guiwang Tianmo dance skills .. … is the Wulin Tianbengdelie .. think of the skills .. you think that other attacks may overlook the basic skills …

2: New skills and a re -

New skills. Needless to say the. Wang addition: heavy blow +2 alert +7 reasons: It is not recommended + courage for 30-25 points after 30 attacks useful basic can be ignored, and can make up for the equipment … However + full alert +13 Points can be all the resistance .. this basic equipment is not used to make up for. In the long run, whether PK. .. Are still under a copy of precious 13:00 resistance ..

1-skills: crazy demons +3 (15 plus start) Below the thick soil to increase.

Blood oaths +3 (16 plus start) Guiwangzhenqi + recommended for less ..

Thick soil +8 (20 plus start) Guiwang the advantage of more blood. It carry forward this advantage. Become a legend in Xueniu.