Question

Saarthi drove her bicycle with the speed of 2m/s for 10 minutes and then for next 5 minutes she drove with 3m/s speed to reach her school from home. Find the distance between her home and school

Answer 1

Given:

• Speed 1 = 2m/s
• Time 1 = 10min
• Speed 2 = 3m/s
• Time 2 = 5mins

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Need to find:

• The distance between her home and school =?

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Solution:

T1= 10mins

→ T1 = 10× 60 secs

→ T1 = 600 secs

The distance travelled in 10mins or in 600 secs is:

→ Speed1 × Time1

→ 2m/sec × 600sec

→ 1200 m ---- i

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T2= 5mins

→ T2= 5 ×60 secs

→ T2= 300 secs

The distance travelled in next 5mins or in next 300 secs is:

→ Speed2 × Time2

→ 3 m/s × 300 sec

→ 900m----ii

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Adding i and ii we get,

Total distance travelled = 1200m+ 900m

→Total distance travelled = 2100m

∴ The distance between her home and school is 2100m