A long distance runner runs 9 laps of a 400 metres track every day. His timings (in min) for four consecutive days are 88, 96, 89 and 87 respectively. One and average, how many metres/minute does the runner cover? `17. 78` b. `40` c. `90` d. none of these

A long distance runner runs 9 laps of a 400 metres track everyday. His timings (in minutes) for four consecutive days are 88, 96, 89 and 87 resplectively. On an average, how many metres/minute does the runner cover ?

If a runner takes as much time in running 20 metres as the car takes in covering 50 metres. The distance covered by the runner during the time the car covers 1 km is 400 m e t r e s b. 40 m e t r e s c. 440 m e t r e s d. none of these

Azad runs 345 metre everyday. In how many days will he cover 4.14 km ? Options are (a) 14 days (b)12 days (c) 10 days (d) None of these.

In a one-day cricket match the captain of one of the teams scored 30 runs more than the average runs scored by the remaining six batsmen of that team who batted in the match. If the total runs scored by all the batsmen of that team were 310, how many runs did the captain score? (a) 50 (b) 60 (c) 70 (d) Cannot be determined (e) None of these

Eight friends A, B, C, D, E, F, G and H have to deliver lectures on either the 6 or 17 of four different months among January, March, April and July but not necessarily in the same order. Not more than 2 persons will give a lecture in a month. Only one person will deliver a lecture each day. A delivers his lecture on the 6 of a month which has only 31 days but not in the month of March. E delivers the lecture immediately after B. Only three lectures were delivered between A and B. Only two persons give lectures between F and C and C is not the last one. The number of persons who give the lecture after E is the same as the number of persons who give the lecture before F. G and C give their lectures in the same month. D gives the lecture before H. How many person (s) deliver lectures between B and F?

There are two towns Ramgarh and Arjangarh which are separated by a hill. The people of one town have to travel on a zig-zag road which goes over the hill so as to reach the other town. Gaurav is a student of class IX in Ramgarh. Onnce Gaurav went from Ramgrah to Arjangarh on a scooter with his father. Driving at a constant speed of 50km/h on the hilly road, it took exactly 30 minute to reach Arjangarh. One day Gaura told his father that if a straight tunnel could be dug through the hill, then it would become very easy for the people of two towns to visit each other. keeping this is mind, Gaurav invited the people of both the towns and took a delegation to the Collector's office. This delegation demanded the construction of a straight tunnel road through the hill. Gaurav explained the various advantages of connecting Ramgarh and Arjangarh through a tunnel road in the hill. The collector liked the idea and a straight tunnel road was constructed after some time. One day Gaurav went from Ramgarh to Arjangarh through the straight tunnel road on the scooter with his father. Driving at a constant speed of 50 km/h, it took them just 12 minutes to reach Arjangarh. Both, Gaurav and his father were very happy. (a) What was the distance covered by Gaurav on going from Ramgarh to Arjangarh by travelling on road over the hill? (b) What is the distance covered by Gaurav on going from Ramgarh to Arjangarh by travelling on straight tunnel road/ (c) How much less distance is to be covered now in going through the tunnel than on going over the hill? (d) What is the displacement of Gaurav from Ramgarh on reaching Arjangarh? (e) State two advantages of construction of the tunnel road for the people of two towns. (f) What values are displayed by Gaurav in this episode?