A man starts from a point and moves 3km north, then turns to west and goes 2km. He turns north and walks 1 km and then moves 5km towards east. How far is he from the starting point ?
Answer: C Required distance = ((3+1)2 + 32 )1/2 = 5 km.
Q. No. 8:
Bhavika and Sunaina start simultaneously towards each other from two places 100 m apart. After walking 30 m Bhavika turns left and goes 10m, then she turns right and goes 20m and then turns right again and comes back to the road on which she had started walking. If both Bhavika and Sunaina walk with the same speed, what is the distance between them at this point of time ?
Answer: D When Bhavika is at P, Sunaina who is walking at the same rate will be at Q which is at a distance of 70 m from Sunaina's point of start. Required distance between them is PQ PQ = (70+50) - 100 = 20 m.
Q. No. 9:
A girl leaves from her home. She first walks 30 metres in North-West direction and then 30 metres in South-West direction. Next, she walks 30 metres in South-East direction. Finally, she turns towards her house. In which direction is she moving ?
Answer: B Thus, she is moving south-east direction.
Q. No. 10:
The door of Aditya's house faces the east. From the back side of his house, he walks straight 50 metres, then turns to the right and walks 50 metres again. Finally, he turns towards left and stops after walking 25 metres. Now, Aditya is in which direction from the starting point ?
Shyam's house, his office and his gym are all equidistant from each other. the distance between any 2 of them is 4 km. Shyam starts walking from his gym in a direction parallel to the road connecting his office and his house and stops when he reaches a point directly east of his office. He then reverses direction and walks till he reaches a point directly south of his office. The total distance walked by Shyam is :
Answer: D Total distance walked by Shyam = 4+4+4 = 12km.
Q. No. 12:
Ruchi's house is to the right of Vani's house at a distance of 20 m in the same row facing North. Shabana's house is in the North-East direction of vani's house at a distance of 25m. Determine that Ruchi's house is in which direction with respect of Shabana's house?
