APTITUDE

Numbers
H.C.F and L.C.M
Decimal Fractions
Simplification
Square and Cube roots
Average
Problems on Numbers
Problems on Ages
Surds and Indices
Percentage
Profit and Loss
Ratio And Proportions
Partnership
Chain Rule
Time and Work
Pipes and Cisterns
Time and Distance
Trains
Boats and Streams
Alligation or Mixture
Simple Interest
Compound Interest
Logorithms
Areas
Volume and Surface area
Races and Games of Skill
Calendar
Clocks
Stocks ans Shares
True Discount
Bankers Discount
Oddmanout and Series
Data Interpretation
probability
Permutations and Combinations
Puzzles
CALENDAR
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Typical problems

   Problem 1 : on what dates of october,1994 did monday fall ?
   Solution :                   01
			        01
			        94
			        23
			      -------
			   total = 119   
                  Then (119)/7 = (17) = 0 odd days
                 so the day is saturday
       Therefore in october first the day is saturday.so, the monday fell 
on 3rd october 1994.During october 1994, monday fell on
3rd ,10th,17th and 24th. Problem 2 : How many days are there from 2nd january 1995 o 15 th march,1995 ? Solution : Jan + Feb + March 30 + 28 + 15 = 73 days Problem 3 : The year next to 1996 having the same calendar as that of 1996 is ? Solution : Starting with 1996 , we go on countig the number of odd days
till the sum is divisible by 7. Year 1996 1997 1998 1999 2000 odd days 2 1 1 1 2 2 + 1 + 1 + 1 + 2 = 7 odd days i.e odd day. Therefore calendar for 2001 will be the same as that of 1995. Problem 4 : The calendar for 1990 is same as for : Solution : count the number of days 1990 onwards to get 0 odd day. Year 1990 1991 1992 1993 1994 1995 odd days 1 1 2 1 1 1 1 + 1 + 2 + 1 + 1 + 1 = 7 or 0 odd days Therefore calendar for 1990 is the same as for the year 1996. Problem 5 : The day on 5th march of year is the same day on what date of
the same year? Solution : In the given monthly code table represents the march code and
november code both are same.that means any date in march is the same
day of week as the corresponding date in november of that year, so the same day
falls on 5th november.

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