Question
In an office having 160 staff members, 40% are females
and the remaining are males. The average weight of females is 58 kg and that of males is 63 kg. Find the average weight of all staff members.Solution
The correct answer is A
In how ways can the selection be made so that a particular member is always excluded?  Â
In how ways can the selection be made so that a particular member is always included?
In how ways can the selection be made so that a particular member is always included?
6 students appear in an examination. In how many ways can the result be announced?
How many four digit numbers greater than 5000 can be formed with the digits 4 ,5, 7, 8, and 9? Â
Find total number of ways in which the word “AGGRESSION” can be arranged.
Find the number of ways to arrange each letter of the word 'RECREATION' such that all the vowels always come together.
In how many different ways can the letters of the word QUANTITY be arranged so that the vowels always come together?
Salman has a list of 12 friends. He wishes to invite some of them in such a manner that he can enjoy maximum number of parties, but in each party the nu...
In a group of 9 boys and 6 girls, 5 students have to be selected. In how many ways it can be done so that only 2 boys are included.
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