Question
12 18 31 51 ?
112 What will come in place of the question mark (?) in the following series?Solution
12 18 31 51 78 112 +6 +13 +20 +27 +34 +7 +7 +7 +7
Four dice are rolled simultaneously. What is the number of possible outcomes in which at least one of the die shows 2?
Geography books are always together.
- Six people out of which 3 are brothers and the rest are strangers are to be seated in a row. Find the number of ways in which all three brothers are not si...
Seven musicians out of which 3 are from the same band and the rest are solo artists are to be seated in a row. Find the number of ways in which the thre...
7 children are to be selected from a group of 8 boys and 6 girls. In how many ways will the children with at most 3 girls and at least 4 boys be selected?
What will be the number of permutations of n different things, taken r at a time, where repeatition is allowed?
In how many different ways can the letters of the word “INCORPORATION” be arranged so that the vowels comes together?
From 6 officers and 8 Jawans, in how many ways can 5 be chosen to include exactly 3 officers?
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...
In how ways can the selection be made so that a particular member is always excluded?
...
Relevant for Exams:
