Question

can anyone just frame the equations for this question .

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Answer 1

Answer:

180 kms

Step-by-step explanation:

Given data,

Total kms = 555 kms

Bus avg speed = 60km/hr

Car avg speed = 75km/hr

Total time = 8 hours

So Travel time in bus and car can be considered as T1 and T2 respectively.

So T1 + T2 = 8 hours_______(a)

Bus avg dist = D1

Car avg dist = 555 - D1

Speed = Distance / Time

Time = Distance / speed

Substituting in equation (a)

D1/60 + (555-D1)/75 = 8

75xD1 + (555-D1)x60 = 8x60x75

75D1 + 33300 - 60D1 = 36000

15 D1 = 2700

D1 = 180 kms

Thus he traveled 180 kms by bus