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One day, Ravi left home and cycled 20 Km southwards, turned right and cycled 10 km and turned right and cycled 20 Km and turned left and cycled 20 Km. How many kilometres will he have to cycle to reach his home straight?
- a)50 km
- b)30 km
- c)60 km
- d)40 km
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
One day, Ravi left home and cycled 20 Km southwards, turned right and ...
Ravi starts from home at A, moves 20 Km in south to B. Then he turns right and moves 10 Km to C, then he turns right and moves 20 Km to D, then he turns lefts and moves 20 Km to E.
So, from image it is clear that, if he moves straight then he will have to move AD+DE, AD = BC = 10 Km.
So, he will have to move 10 + 20 = 30 Km.
So, from image it is clear that, if he moves straight then he will have to move AD+DE, AD = BC = 10 Km.
So, he will have to move 10 + 20 = 30 Km.
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One day, Ravi left home and cycled 20 Km southwards, turned right and ...
To solve this problem, we need to visualize the movements of Ravi and determine his final position in relation to his starting point. Let's break down the given information and solve step by step.
Initial Position: Ravi starts from home.
First Movement: Ravi cycles 20 km southwards.
- This means Ravi is now 20 km south of his starting point.
Second Movement: Ravi turns right and cycles 10 km.
- Since Ravi turned right, he is now heading west.
- Ravi cycles 10 km west.
- This means Ravi is now 10 km west and 20 km south of his starting point.
Third Movement: Ravi turns right again and cycles 20 km.
- Since Ravi turned right again, he is now heading north.
- Ravi cycles 20 km north.
- This means Ravi is now 10 km west and 20 km north of his starting point.
Fourth Movement: Ravi turns left and cycles 20 km.
- Since Ravi turned left, he is now heading west again.
- Ravi cycles 20 km west.
- This means Ravi is now 30 km west and 20 km north of his starting point.
Final Position: Ravi needs to calculate the distance he has to cycle to reach his home straight.
- Ravi is currently 30 km west and 20 km north of his starting point.
- To reach his home straight, Ravi needs to cycle directly east for 30 km.
- Therefore, Ravi will have to cycle 30 km to reach his home straight.
Answer: The correct answer is option B) 30 km.
Initial Position: Ravi starts from home.
First Movement: Ravi cycles 20 km southwards.
- This means Ravi is now 20 km south of his starting point.
Second Movement: Ravi turns right and cycles 10 km.
- Since Ravi turned right, he is now heading west.
- Ravi cycles 10 km west.
- This means Ravi is now 10 km west and 20 km south of his starting point.
Third Movement: Ravi turns right again and cycles 20 km.
- Since Ravi turned right again, he is now heading north.
- Ravi cycles 20 km north.
- This means Ravi is now 10 km west and 20 km north of his starting point.
Fourth Movement: Ravi turns left and cycles 20 km.
- Since Ravi turned left, he is now heading west again.
- Ravi cycles 20 km west.
- This means Ravi is now 30 km west and 20 km north of his starting point.
Final Position: Ravi needs to calculate the distance he has to cycle to reach his home straight.
- Ravi is currently 30 km west and 20 km north of his starting point.
- To reach his home straight, Ravi needs to cycle directly east for 30 km.
- Therefore, Ravi will have to cycle 30 km to reach his home straight.
Answer: The correct answer is option B) 30 km.
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One day, Ravi left home and cycled 20 Km southwards, turned right and cycled 10 km and turned right and cycled 20 Km and turned left and cycled 20 Km. How many kilometres will he have to cycle to reach his home straight?a)50 kmb)30 kmc)60 kmd)40 kmCorrect answer is option 'B'. Can you explain this answer?
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