ar

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

شائع Word Problems >

Two cars leave the city at the same and travel in opposite directions. If one car travels at a rate of 40 kph and the other at 42 kph, how long will it take them to be 246 kilometers apart?

الحلّ

Tw o c a rs l e a v e t h e c i t y a t t h e s am e an d t r a v e l in o pp os i t e d i rec t i o n s . I f o n e c a r t r a v e l s a t a r a t e o f 40 k p h an d t h e o t h er a t 42 k p h, h o w l o n g w i ll i t t ak e t h e m t o b e 246 ki l o m e t ers a p a r t ?

الحلّ

time : 3

خطوات الحلّ

Translate the problem into an equation:

40 x + 42 x = 246

40 x + 42 x = 246, x

حلّ لـ:

x = 3

time : 3

أمثلة شائعة

Fifty-one more than a number is-12 . What is the number?The diameter of a circle is 11 m. Find its area to the nearest whole number.Two train leave towns 777 kilometers apart at the same time and travel toward each other. One train travels 11 kmh slower than the other. If they meet in 3 hours. What is the rate of each train?8 times the sum of a number and 10 The radius of a circle is 10 ft. Find its area in terms of pipi.