In conservation tillage, minimum 30% land surface should be covered by crop residues.
In how many different ways can the letters of the word QUANTITY be arranged so that the vowels always come together?
The number of ways in which a committee of 3 ladies and 4 gentlemen can be appointed out of 8 ladies and 7 gentlemen If Mrs. X refuses to serve on a com...
There are 10 boys and 15 girls in the commerce class. Three students are selected at random. Find the probability that 2 girls and 2 boys are selected.
Nine boys have to stand in a circle. In how many ways they are to be stand on the circumference of circle?
How many 5-digit even numbers can be formed using the digits 0 to 9 if no digit is repeated?
In how ways can the selection be made so that a particular member is always included?
In how many ways can the letters of the word ‘MEDICAL’ be rearranged so that the vowels never come together?
How many no. of 4 digits can be formed with the digits 4, 8, 7 & 3 no digit being repeated.
...In how many ways can 7 boys and 2 girls can be seated in a row so that they are in alternate position.
In a Group of 8 boys and 6 girls, Six children are to be selected. In how many different ways can they be selected such that at least one boy should be ...
