Grade 11Magical Mathematics[Interesting Approach]
Find the total no. of ways of selecting five letters of the word INDEPENDENT .
2 Answers
shubham sharma
Ans. is 72!!
All letters are nt same so
There are 5 cases
• of form(abcde) all distinct = 6 ways
• of form (aaabb)= 4 ways
•of form( aaabc)= 5c2 +5c2= 20 ways
•of form (aabcd)= 3.5c3 = 30ways
•of form (aabbc) =3.4c1= 12ways
Adding these 72!!!
vamsi
in given word 11 letters are present.in all of them 3-N,2-D,2-E are present.
so required answer is =(11!)÷(3!×2!×2!)
=1663200
Other Related Questions on magical mathematics[interesting approach]
Given that (1+5x)⁴ = 1 + Px + Qx² + Rx³ +..... Find the values of P - 2Q + 3R
Given that (1+5x)⁴ = 1 + Px + Qx² + Rx³ +..... Find the values of P - 2Q + 3R
magical mathematics[interesting approach]
Last Activity: 3 Years ago
9 men and 15 boys working 10 hours a day can make 12 pillars in 42 days, in how many days will 12 men and 22 boys working 8 hours a day can make pillars 4 times the previous number?
9 men and 15 boys working 10 hours a day can make 12 pillars in 42 days, in how many days will 12 men and 22 boys working 8 hours a day can make pillars 4 times the previous number?
magical mathematics[interesting approach]
Last Activity: 4 Years ago
In the given figure, PQ is a tangent at a point C to a circle with centre O. If AB is a diameter, find angle PCA + angle BCQ?
In the given figure, PQ is a tangent at a point C to a circle with centre O. If AB is a diameter, find angle PCA + angle BCQ?
magical mathematics[interesting approach]
Last Activity: 4 Years ago
for any two sets A and B (A-B)U(B-A)U (A intersection B)
for any two sets A and B (A-B)U(B-A)U (A intersection B)
magical mathematics[interesting approach]
Last Activity: 4 Years ago
If someone has got 150 out of 200 marks in term 1 exam and 160 out of 200 marks in term 2 exam then what is the percentage in 30:70
If someone has got 150 out of 200 marks in term 1 exam and 160 out of 200 marks in term 2 exam then what is the percentage in 30:70
magical mathematics[interesting approach]
Last Activity: 4 Years ago