Question

A car cover 30 km at a uniform speed of 60 km/h and the next 30 km at a uniform speed of 40 km/h find the total time taken

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Answer 1

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${\small{\red{\boxed{1\:\:Hour\:\:45\:\:Minutes}}}}$

$<marquee>EXPLANATION</marquee>$

☆ Given:-

• Uniform speed during first 30 km = 60km/h.

• Uniform speed during next 30 km = 40km/h.

☆ To find:-

• Total time of the journey.

☆ Formule used:-

=》 Speed = Distance/time

=》 Time = Distance/Speed.

☆ Now,

Time taken during first 30 km,

= (30/60) Hours.

= (1/2) Hours.

= 0.5 Hours.

= (0.5 × 60) minutes.

${\large{\blue{\boxed{= \:\:30 \:\:Minutes.}}}}$

☆ Similarly:-

Time taken to travel next 30 km,

= (30/40) Hours.

= (3/4) Hours.

= (3/4 × 60) Minutes.

= (180/4) Minutes.

${\large{\blue{\boxed{=\:\: 45\:\: Minutes.}}}}$

☆ Therefore,

Total time taken,

= (30+45) Minutes.

= 75 Minutes.

${\large{\blue{\boxed{=\: 1\: hour \:15\: minutes.}}}}$

Therefore total time taken during the journey is 1 hour 15 minutes.

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