by shivamtripathi22 | Feb 21, 2022 | Uncategorized
(Q). If a bus conductor has 435 different tickets then findd the number of stoppage that the bus has, consider only one way journey.Solution:- if the bus has ‘n’ number of stoppage then to have a ticket we have to select 2 stoppages out of n and that can...
by shivamtripathi22 | Feb 21, 2022 | Uncategorized
(Q). In how many ways a team of p students can be selected from q students such that r student are always included & s students are always included?Solution:- ᑫ ⁻ ʳ ⁻ ˢCₚ ₋ ᵣ ...
by shivamtripathi22 | Feb 19, 2022 | Uncategorized
(Q). In how many ways at least 5 players can be selected from a group of 7...
by shivamtripathi22 | Feb 19, 2022 | Uncategorized
(Q). In how many ways 7 players can be selected out of 15 players if Virat is always included?Solution:- Sincec Virat is always included∴ number of ways of selection = ¹⁵⁻¹C₇₋₁ ...
by shivamtripathi22 | Feb 19, 2022 | Uncategorized
(Q). Let there are 8 oranges, 6 mangoes & 3 apples(i) How many selection of fruits can be made?(ii) How many selection of fruits can be made such that at least 1 apple is always included?(iii) How many selection of fruits can be made such that at least one fruit...