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The primary property of lead that makes it ideal as a shielding material is density. However, for radiation shielding, this material possesses other critical properties, such as a high degree of application flexibility, extreme level of stability, and high atomic number.
Nine boys have to stand in a circle. In how many ways they are to be stand on the circumference of circle?
Find the quantity of methods of picking 4 cards from a set of 52 playing cards if four cards are of the same unit?
In how many different ways can the letters of word ‘PUMPKIN’ be arranged?
In how many ways can 17 members be seated in two lines with seating capacity of 9 and 8 members respectively?
1. 9! ×8!
2. �...
Find the number of words that can be formed by using all letters of the word 'TANGLE', if it starts with letter G and end with letter A.
In a bag there are 4 red balls, 3 green balls, and 5 blue balls. If one ball is drawn at random from the bag, what is the probability of drawing a green...
How many words can be formed with the letter of the word ‘NUMBER’ when alll vowels are never together?
Five articles out of which 3 are cups and rest are glasses have to be arranged on a shelf. Find the number of ways of arrangement in which all three cup...
How many different words can be formed with the letters of the word PRACTICE such that each of the word begin with E and ends with R?
In how ways can the selection be made so that a particular member is always included?