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प्रश्न
A man travelled 60 km by car and 240 km by train. Find what percent of total journey did he travel by car and what percent by train?
उत्तर
Distance covered by car = 60 km
Distance covered by train = 240 km
∴ Total journey = 60 + 240 = 300 km
Let x% of total journey is travelled by car.
Then, x% of 300 = 60
⇒ `x/100 xx 300` = 60
⇒ x = `(60 xx 100)/300`
⇒ x = 20%
Let y% of total journey is travelled by train.
Then, y% of 300 = 240
⇒ `y/100 xx 300` = 240
⇒ y = `(240 xx 100)/300`
⇒ y = 80%
Hence, 20% distance is travelled by car and 80% distance Is travelled by train.
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