# Maths

The probability that Don's car passes the MOT test next time is 4/5, that Mag's car passes is 5/7 and that Joe's car passes is 1/2.
Find the probability that a)all three will pass b)just two out of the three will pass c)no car passes?
(might need a probability tree)

1. 👍 0
2. 👎 0
3. 👁 149
1. (a) (4/5)x(5/7)x(1/2)= ?

(b) Add the probabilities that only Don, only Mag and only Joe pass
(1/5)(5/7)(1/2) + (4/5)(2/7)(1/2) + (4/5)(5/7)(1/2) = ?

(c) (1/5)x(2/7)x(1/2)+ ?

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### physics

A car is speeding at 25 m/s in a school zone. A police car starts from rest just as the speeder passes and accelerates at a constant rate of 5 m/s2. How fast is the police car traveling when it is 25 m behind the speeding car? I

asked by TiffTaff on January 25, 2015
2. ### Math

Car A is travelling at a constant speed of 100mph at the time it passes a stationary vehicle (Car B). If the Car B hopes to catch Car A within a mile, how fast must Car B travel? Assume Car B can accelerate from 0-60mph in 6

asked by Chris on October 6, 2011
3. ### physics

At the instant a traffic light turns green, a car starts from rest with a given constant acceleration 0.5 m/s^2. just as the light turns green, a bus, traveling with a given cinstant speed 16.0 m/s, passes the car. The car speeds

asked by qwertzuiop on January 24, 2012
4. ### physics

At the instant a traffic light turns green, a car starts from rest with a given constant acceleration 0.5 m/s^2. just as the light turns green, a bus, traveling with a given cinstant speed 16.0 m/s, passes the car. The car speeds

asked by qwertzuiop on January 24, 2012
5. ### probability

You and your friend just rented a car for an 8,000 mile cross-country road trip. Your rental car may be one of three different types: new (N), nearly one year old (O), and old (L). If the car you receive is brand new, it will

asked by matt on September 9, 2015
6. ### probability

You and your friend just rented a car for an 8,000 mile cross-country road trip. Your rental car may be one of three different types: new (N), nearly one year old (O), and old (L). If the car you receive is brand new, it will

asked by matt on September 11, 2015
7. ### probability

You and your friend just rented a car for an 8,000 mile cross-country road trip. Your rental car may be one of three different types: new (N), nearly one year old (O), and old (L). If the car you receive is brand new, it will

asked by matt on September 10, 2015
8. ### probability

You and your friend just rented a car for an 8,000 mile cross-country road trip. Your rental car may be one of three different types: new (N), nearly one year old (O), and old (L). If the car you receive is brand new, it will

asked by matt on September 7, 2015
9. ### Physics

A car starts from rest with an acceleration of 1.87 m/s^2 at the same time that a second car moving with a velocity of 29.2 m/s passes it. How far does the first car move before it overtakes the second car?

asked by Frank William on November 9, 2015
10. ### Physics

Car A passes a light post moving at 25m/s and continues at this speed. Two seconds later, another car passes the light post moving at 40m/s. Assuming no acceleration of either car. a)How much time will it take for the second car

asked by Coco on February 12, 2012

More Similar Questions