by shivamtripathi22 | Mar 12, 2022 | Uncategorized
(Q). In how many ways 5 players can be selected out of 10 players(i). If Ankit & Rahul are always selected(ii). If Ankit & Rahul are always rejected.Solution:- (i). ⁸C₃ ways(ii). ⁸C₅ ways ...
by shivamtripathi22 | Mar 11, 2022 | Uncategorized
(Q). In how many ways a team of 4 boys & 5 girls out of total 8 boys & 10 girls can be formed?Solution:- ⁸C₄ × ¹⁰C₅...
by shivamtripathi22 | Mar 11, 2022 | Uncategorized
(Q). In how many ways 5 students from a group of 10 students be selected if Ankit & Rahul are not selected together?Solution:- number of ways to select 5 student from a group of 10 students without any restriction = ¹⁰C₅ ways& when both Ankit & Rahul are...
by shivamtripathi22 | Mar 4, 2022 | Uncategorized
(Q). There are 10 singers who is ready to perform in a show that is scheduled for two timings, before lunch & after lunch. If before lunch maximum 6 singers can perform while after lunch maximum 5 singers can perform then in how many different way program can be...
by shivamtripathi22 | Mar 4, 2022 | Uncategorized
(Q). (i). Find the total number of factors of 54000(ii). Sum of all factors of 54000(iii). Sum of all factors of 54000 that ends with 5.Solution:-5400 = 2⁴ × 3³ × 5³ (i). ∴ total number of factors = (4 + 1)(3 + 1)(3 + 1)= 80 Answer (ii)Sum of all the factors = ...
