5 चीजें आज ही छोड़ दो | leave these 5 things from today #shorts

If the difference of the number of arrangements of three things from a certain number of dissimilar things and the number of selection of the same number of things from them exceeds 100, then the least number of dissimilar things is a.8 b.6 c.5 d.7

If n,(n>5) things are arranged in a circular order,the number of ways of selecting three of the things so that no two of which are next to each other is

From a group of boys and girls,15 girls leave. There are then left 2 boys for each girl.After this,45 boys leave.There are then 5 girls for each boy.Find the number of girls in the beginning.

A person wants to leave station Q. There are 4 routes from station Q to P and 5 routes from Q to R. In how many ways can he travel from the station Q ?

A work can be completed by 35 workers in 30 days. If 5 workers leave after every 10 days then in how many days will the work be completed ? एक काम 30 दिनों में 35 श्रमिकों द्वारा पूरा किया जा सकता है। यदि प्रत्येक 10 दिनों के बाद 5 श्रमिक कार्य छोड़ देते हैं तो कार्य कितने दिनों में पूरा होगा?

If 25 identical things be distributed among 5 person then The number of ways each receives at least one thing but not more than eleven is

The smallest number which when divided by 5 , 10 , 12 and 15 leaves remainder 2 in each case , but when divided by 7 leaves no remainder , is

The efficiency of A, B and C is the same. They started working on a certain job. After 5 days a leaves, after 5 moere days B leaves and C completes the remaining work in 5 more days. Find the time taken by eahc of them alone to complete the job. (in days)?

STATEMENT -1 : No. of ways of distributing 20 different things equally among 5 persons = 20!//4!^(5) . STATEMENT -2: No. of ways of distributing 20 different things equally among 5 persons = 20!//4!^(5).5! . STATEMENT-3 : No. of ways of distributing 20 different things in 5 groups such that in three group there are 6 things each and in remaining two groups there is 1 thing each = (20!)/((6!)^(3)) .

In how many ways 50 different things can be divided in 5 sets three of them having 12 things each and tow of them having 7 things each.