If y = 5, then what is the value of 10y
Solution-
y=5
10y
=10×5 ( √ 125-25)
=50(10)=500.
Nine boys have to stand in a circle. In how many ways they are to be stand on the circumference of circle?
Among a set of 4 black balls and 3 white balls, how many selections of 3 balls can be made such that at least 2 of them are black balls?
In how many ways can 6 boys and 3 girls can be seated in a row so that they are in alternate position.
In how ways can the selection be made so that a particular member is always excluded?
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 how many ways 6 novels and 7 notebooks can be arranged in a row so that they are alternate?
From 6 officers and 8 Jawans, in how many ways can 5 be chosen to include exactly 3 officers?
How many ways can 8 women and 8 men be seated around a circular table where no two women can sit together?
History books are always together and also Geography books are always together?
Find the quantity of arrangements of the letters of the word INDEPENDENCE if all the vowels always occur together?