# A car wash can wash 8 cars in 18 minutes, At this rate, how many cars can the car wash in 3 hours?

80

This question is related to Wipro Interview

#### satishkumar

• May 27th, 2006

let us first convert 18 min in to hours ie.,18/60=3/10

since it washes 8 cars for 3/10hors

for 3 hours?

8-----3/10

?  ----  3

3*8/3/10=80 is the required ans

#### challasandhya Profile Answers by challasandhya

• Jun 1st, 2006

A car wash can wash 8 cars in 18min

8cars--->18 min

IN 3 hours means--->180 min

i.e,180*8/18=80 cars.

#### ecejmr Profile Answers by ecejmr

• Oct 6th, 2010

For washing one car it takes 145 sec.. 3 hours contain 10800 secs. Therefore 74 cars can be washed.......

#### bharathreddy511 Profile Answers by bharathreddy511

• Oct 20th, 2010

3hrs =180mins
in 18 mins car wash can wash 8 cars
then
in 180(18*10)mins carwasher can wash 80(8*10) cars

#### Sambo Profile Answers by Sambo

• Dec 9th, 2010

Time taken to wash 8 cars= 18 mins

Therefore time taken to wash 1 car= 18/8 => 9/4 mins..

Let the no. of cars washed in 3 hours(180 mins) be x;

9/4 * x = 180

x = 180 * 4/9

x = 80 is the right answer..........

#### irfan

• Dec 14th, 2020

car washed in 18 min = 8
than 8/18 = 0.44
0.44*180=80