4 9 28 99 ? 2105 12660
4 × 1 + 5 = 9 9 × 2 + 10 = 28 28 × 3 + 15 = 99 99 × 4 + 20 = 416 416 × 5 + 25 = 2105 2105 × 6 + 30 = 12660
In how many different ways can the letters of the word "WINTER" be arranged so that the vowels are at the two ends?
In how many different ways can the letters of the word ‘FLOWER’ be arranged in such a way that the vowels occupy only the odd positions?
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 ...
Geography books are never together.
From 6 officers and 8 Jawans, in how many ways can 5 be chosen to include exactly 3 officers?
How many different ways can the letters of the word ‘DEMONETIZATION’ be arranged?
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.
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.
How many ways can 8 women and 8 men be seated around a circular table where no two women can sit together?
Find the number of words that can be formed by using all letters of the word 'PAINT', if order of vowels remains same.
