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In the annual function of a school every student gave a gift to every other student. If total number of gift distributed is 380 then
(i). How many students were present in the function?
(ii). How many gifts received by a particular student Amit

by | Mar 4, 2022 | Uncategorized

(Q). In the annual function of a school every student gave a gift to every other student. If total number of gift distributed is 380 then(i). How many students were present in the function?(ii). How many gifts received by a particular student Amit ?Solution:-Let there...

A committee of 5 men & 5 women is to be selected from 9 men & 10 women.
(i). In how many ways this can be done
(ii). In how many ways this can be done if a particular woman is always selected
(iii). In how many ways this can be done if a particular woman is always selected and a man is always rejected?

by | Mar 3, 2022 | Uncategorized

(Q). A committee of 5 men & 5 women is to be selected from 9 men & 10 women. (i). In how many ways this can be done (ii). In how many ways this can be done if a particular woman is always selected (iii). In how many ways this can be done if a particular woman...

30 players from India, Canada & Russia participatedd in world chess tournament. Number of players from india is 3 more than the number of players from canada. In tournament players from same country are not allowed to play against each other & no two player plays against each other more than once. Then find
(i). The maximum number of matches that was played in the tournament
(ii). If number of matches is maximum then what is the ratio of number of players from India & Russia ?

by | Mar 3, 2022 | Uncategorized

(Q). 30 players from India, Canada & Russia participatedd in world chess tournament. Number of players from india is 3 more than the number of players from canada. In tournament players from same country are not allowed to play against each other & no two...

In a certain test, 2⁽ᵏ⁻ᶦ⁾ students gave wrong answers to at least i questions, where i = 1, 2, 3, ………., k & no student gave more than k wrong answers. what is the total number of wrong answers given

by | Mar 3, 2022 | Uncategorized

(Q). In a certain test, 2⁽ᵏ⁻ᶦ⁾ students gave wrong answers to at least i questions, where i = 1, 2, 3, ………., k & no student gave more than k wrong answers. what is the total number of wrong answers given?Solution:- From previous questiontotal...