Aisha Travels 400 km partly by train and partly by bus she takes 9 hours if he travels 120 km by train and remaining by the bus travel 150 kilometre by bus and the remaining by train she takes 1 hour shorter the speed of bus is 5K kilometre per hour find k
Answers
Answer:
The value of k is 8
Step-by-step explanation:
Let the speed of the train be m km per hour
By data in case 1 when time = 9hours
Distance travelled by train =120km
Distance travelled by bus=400-120=280
120÷m +280÷5k= 9 be equation 1
In case 2 time 8 hours
distance by bus= 150km
distance by train = 400-150= 250
150÷5k + 250÷m =8 be equation 2
equation 1 × 250 - equation 2 ×120
(280×250)÷5k - (150×120)÷ 5k = 9×250 - 8×120
14000÷k - 3600÷k =1290
k=8.06
Answer:
The value of k is 8
Step-by-step explanation:
Let the speed of the train be m km per hour
By data in case 1 when time = 9hours
Distance travelled by train =120km
Distance travelled by bus=400-120=280
120÷m +280÷5k= 9 be equation 1
In case 2 time 8 hours
distance by bus= 150km
distance by train = 400-150= 250
150÷5k + 250÷m =8 be equation 2
equation 1 × 250 - equation 2 ×120
(280×250)÷5k - (150×120)÷ 5k = 9×250 - 8×120
14000÷k - 3600÷k =1290
k=8.06
Step-by-step explanation: