Question
Who among the following goes for seminar in the month
which has less than 31 days? Study the following information carefully and answer the given questions: There are ten persons namely A, B, C, D, E, F, G, H, I and J. They go for seminars on 12th and 25th of different months i.e., January, March, April, June and July but not necessarily in the same order. G goes for seminar in the month which have odd number of days but not in January. Four persons goes for seminar between G and H. E did not go for seminar on an even date. G goes for seminar before H. I goes for seminar in the month which has odd numbers of days. D goes for seminar on an even date of the month which has even number of days after E. A goes for seminar just before E. Only two persons goes for seminar between I and J. F goes for seminar just after C but not in April and January. Only three persons goes for seminar between B and F. E and F goes for seminar on the same date but different months.Solution
G goes for seminar in the month which have odd number of days but not in January. Four persons goes for seminar between G and H. G goes for seminar before H. We will have two cases: If G goes for seminar on 12th March, then H will goes for seminar on 25th June. If G goes for seminar on 25th March, then H will goes for seminar on 12th July.
A goes for seminar just before E. E did not go for a seminar on an even date. F goes for seminar just after C but not in April and January. Only three persons goes for seminar between B and F. E and F goes for seminar on the same date but different months. If F goes for seminar on 25 th July, then B will goes for seminar on 25 th April and C will goes for seminar on 12 th July. E will goes for seminar on 25 th January. If F goes for seminar on 12th June, then B will goes for seminar on 12th March and C will goes for seminar on 25th April but this case will get discarded as we cannot place E.
I goes for seminar in the month which has odd numbers of days. D goes for seminar on an even date of the month which has even number of days after E. Only two persons goes for seminar between I and J. I goes for seminar on 25th March. J goes for seminar on 12th June. D goes for seminar on 12th April. 
A 150-metre train takes 6 seconds to cross a pole. If the same train takes 12 seconds to cross train 'C' that is travelling in opposite direction at 20 ...
A train started from station P and preceded towards station Q at a speed of 84 km/h. 40 minutes later, another train started from station Q and preceded...
Two trains of length 420 metres and 320 metres are moving in opposite directions with speeds 15 m/s and 20 m/s. If initially they are 100 metres apart, ...
Train A leaves a station at a certain time and at a fixed speed. After 4 hours, Train B leaves the same station and moves in the same direction at a uni...
A train can cross a pole in 18 seconds. While if the train increased its speed by 75% then time taken by it to cross 444 metres long platform is 42 seco...
A train takes 22 seconds to cross a platform and 9 seconds to cross a pole. If the length of the train is 50 metres less than the length of the platform...
A 280 m long train crosses a platform twice its length in 2 min. Find the speed of the train.
- A pedestrian walking at 6 km/h is overtaken by a train running at three times the speed of the pedestrian. If it takes 9 seconds to cross him, find the tra...
Train A running at a speed of 31 km/hr crosses train B in 20 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B is...
1400 metres long train crosses a man who is moving in the same direction with a certain speed in 25 seconds. If the same train can cross a pole in 20 se...