Q. Ajay covers certain distance with his own speed but when he reduces his speed by 10 km/h, his time duration for the journey increases by 40 hours while if, he increases his speed by 5 km/h from his original speed, he takes 10 hours less than the original time taken. Find the distance covered by him.
1) 1000 km
2) 1200 km
3) 1500 km
4) 1800 km
Q. Two places R and S are 800 km apart from each other. Two persons start from R towards S at an interval of 2 hours. Whereas A leaves R for S before B. The speeds of A and B are 40 km/h and 60 km/h respectively. B overtakes A at M, which is on the way from R to S. What is the distance from R, where B overtakes A?
1) 260 km
2) 235 km
3) 240 km
4) 300 km
Q. Two places R and S are 800 km apart from each other. Two persons start from R towards S at an interval of 2 hours. Whereas A leaves R for S before B. The speeds of A and B are 40 km/h and 60 km/h respectively. B overtakes A at M, which is on the way from R to S. What is the ratio of time taken by A and B to meet at M?
1) 1 : 3
2) 1 : 2
3) 1 : 4
4) 3 : 2
Q. Anita goes to College at 20 km/h and reaches college 4 minutes late. Next time she goes at 25 km/h and reaches the college 2 minutes earlier than the scheduled time. What is the distance of her school?
1) 16 km
2) 12 km
3) 15 km
4) 10 km
Q. The distance of the school and house of Suresh is 80 km. One day he was late by 1 hour than the normal time to leave for the college, so he increased his speed, by 4km/h and thus he reached college at the normal time. What is the changed speed of Suresh?
1) 28 km/h
2) 25 km/h
3) 20 km/h
4) 24 km/h
Q. Bala travels first one-third of the total distance at the speed of 10 km/h and the next one-third distance at the speed of 20 km/h and the last one-third distance at the speed of 60 km/h. What is the average speed of Bala?
1) 18 km/h
2) 19 km/h
3) 16 km/h
4) 12 km/h
Q. Ramesh walked 6 km to reach the station from his house, then he boarded a train whose average speed was 60 km/h and thus he reached his destination. In this way he took a total time of 3 hours. If the average speed of the entire journey was 32 km/h then the average speed of walking is:
1) 5 km/h
2) 8 km/h
3) 2 km/h
4) 4 km/h
Q. Suresh started his journey from P to Q by his bike at the speed of 40 km/h and then, the same distance he travelled on his foot at the speed of 10 km/h from Q to R. Then he returned from R to P via Q at the speed of 24 km/h. The average speed of the whole trip is:
1) 18.5 km/h
2) 19.8 km/h
3) 18.2 km/h
4) 19.2 km/h
Q. The average presence of students at a class in a College on Monday, Tuesday and Wednesday is 32 and on the Wednesday, Thursday, Friday and Saturday is 30. If the average number of students on all the six days is 26 then the number of students who attended the class on Wednesday is?
1) 50
2) 40
3) 60
4) 70
Q. At the end of a business conference the ten people present all shake hands with each other once. How many handshakes will there be altogether?
1) 20
2) 45
3) 55
4) 90
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