(Q). If r, s, t are prime numbers & p, q are positive integers such that the LCM of p, q is r²t²s⁴, then the number of ordered pair (p,q) is?Solution:-Since r, s, t are prime numbers.∴ selection of p & q will be done in following...
(Q). In how many ways 5 numbers can be selected from {1, 2, 3, 4, 5, 6, ………. n} such that not all the five numbers are consecutive?Solution:-Required number of ways= number of ways of selecting 5 out of n students – number of ways of selecting...
(Q). 15 singers were selected to perform in a party, but at a time only 5 singers can perform, then how many times a particular singer performed if no same group of 5 singers performed twice?Solution:- Since a particular singer is always selected then number of ways...
(Q). 15 singers were selected to perform in a party, but at a time only 5 singers can perform, then total how many times performance was done if no same group of 5 singers performed twice?Solution:- Number of singers = 15Number of singers selected at a time = 5&...
🍪 We use cookies to improve your browsing experience, serve personalized ads and analyze our traffic. By clicking Accept All you consent to our use of cookies as described in our Privacy Policy.
