Question

1. A bus started its journey and reached different places with a speed of 60 km/hour. The journey is shown below.

(i) Find the total distance covered by the bus from A to D.

(ii) Find the total distance covered by the bus from D to G.

(iii) Find the total distance covered by the bus, if it starts from A and returns back to A.

(iv) Can you find the difference of distances from C to D and D to E?

(v) Find out the time taken by the bus to

reach

(a) A to B (b) C to D

(c) E to G (d) Total journey

Answer 1

You missed the attachment so I'm adding the bus journey picture.

i) The total distance covered by the bus from A to D

  = (4170 + 3410 + 2160) km

  = 9740 km

ii) The total distance covered by the bus from D to G

  = (8140 + 4830 + 2550) km

  = 15520 km

iii) The total distance covered by the bus, if it starts from A and returns back to A

  = (4170 + 3410 + 2160 + 8140 + 4830 + 2550 + 1290) km

  = 26550 km

iv) The difference of distances from C to D and D to E

  = (8140 - 2160) km

  = 5980 km

v) Speed of the bus = 60 km/h

  Time taken = (Distance)/60 hours

a) The distance between A to B

   = 4170 km

   Time taken

   = 4170/60 hours

   = 4170/60 × 60 minutes

   = 4170 minutes

   = (60 × 69) + 30 minutes

   = 69 hours 30 minutes

b) The distance between C to D

   = 2160 km

   Time taken

   = 2160/60 hours

   = 36 hours

c) The distance between E to G

   = (4830 + 2550) km

   = 7380 km

   Time taken

   = 7380/60 km

   = 123 hours

d) Total journey

    = 26550 km

    Time taken

    = 26550/60 hours

    = 442.5 hours

    = 442 hours 30 minutes

Answer 2

Answer:

Concept:  calculating the  total distance covered  and  putting  the formulae of time to calculate the time  taken.

Given: A bus started its journey and reached different places with a speed of 60 km/hour.

To find:

(i) Find the total distance covered by the bus from A to D.

(ii) Find the total distance covered by the bus from D to G.

(iii) Find the total distance covered by the bus, if it starts from A and returns back to A.

(iv) Can you find the difference of distances from C to D and D to E?

(v) Find out the time taken by the bus to reach

(a) A to B (b) C to D

(c) E to G (d) Total journey

Step-by-step explanation:

(i) The total distance covered by the bus from A to D

 = ($4170 + 3410 + 2160$) km

 = $9740$ km

ii) The total distance covered by the bus from D to G

 = ($8140 + 4830 + 2550$) km

 = $15520$ km

iii) The total distance covered by the bus, if it starts from A and returns back to A

 = ($4170 + 3410 + 2160 + 8140 + 4830 + 2550 + 1290$) km

 = $26550$ km

iv) The difference of distances from C to D and D to E

 = ($8140 - 2160$) km

 = $5980$ km

v) Speed of the bus = $60$ km/h

 Time taken = (Distance)/$60$ hours

a) The distance between A to B

  = $4170$ km

  Time taken

  = $4170/60$ hours

  = $4170/60$ × $60$ minutes

  = $4170$ minutes

  = ($60$ × $69$) + $30$ minutes

  = $69$ hours $30$ minutes

b) The distance between C to D

  = $2160$ km

  Time taken

  = $\frac{2160}{60}$ hours

  = $36$ hours

c) The distance between E to G

  = ($4830 + 2550$) km

  = $7380$ km

  Time taken

  = $\frac{7380}{60}$ km

  = $123$ hours

d) Total journey

   = $26550$ km

   Time taken

   = $\frac{26550}{60}$ hours

   = 442.5 hours

   = $442.5$ hours $30$ minutes

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