Given 10 alphabets out of which 5 are to be chosen. How many words can be made with atleast one repetition.
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Total balls z,red balls N remaining are blak balls,then %of black balls equal to
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There are 9 balls of equal size and same weight(they look similar) except 1. How many weights required to find the dissimilar ball using a weighing balance?
10 points are chosen on a plane. Every possible pair of points is joined by a line and the midpoint of the line is marked with red colour. What is the minimum possible number points on the plane which have been marked with red colour?
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If a train covers 600m in 0.5 seconds, how long it will cover in 10 seconds?
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Four Members A, B, C, D are playing a game .A person losing a game should double the amount of others .B, C, D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80.What amount did B have?
In a triangle, the average of the two angles is 56 degrees where as their difference is 24 degrees. What is the measurement of the biggest angle of the triangle?
in how many ways can a lock be opened if that lock has three digit number lock if the last digit is 9 and sum of the first two digits is less than or equal to the last digit. numbers are from 0-9
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How many liters of water must be added to 30 liters of alcohol to make a solution that is 25%