Permatuation and combination problem, Mathematics

Assignment Help:

A student is allowed to select at most n-blocks from a collection of (2n + 1) books. If the total number of ways in which he can select a book is 63, find the value of n.

Solution) Σ2n+1Cr,(from r=1 to r=n)=(22n+1/2)-1=22n-1=63,n=3.


Related Discussions:- Permatuation and combination problem

Square numbers, determine the square of the following numbers ... a.8 b.13 ...

determine the square of the following numbers ... a.8 b.13 c.17 and d.80

How many balls must she select of the same colour, QUESTION (a) A bowl ...

QUESTION (a) A bowl contains ten red balls and ten blue balls. A woman selects balls at random without looking at them. i) How many balls must she select to be sure of havin

Differential equations and group methods, solve the differential equation ...

solve the differential equation dy/dx=f(y)x^n+g(y)x^m by finding a one-parameter group leaving it invariant

Find the interval of validity for the solution, Solve the subsequent IVP an...

Solve the subsequent IVP and find the interval of validity for the solution xyy' + 4x 2 + y 2 = 0,       y(2) = -7,          x > 0 Solution: Let's first divide on both

What is the marginal product of labor function, Your engineering department...

Your engineering department estimated the following production function. Q = 15L 2 - 0.5L 3 a. What is the marginal product of labor function, MP L ? b. What is the aver

Evaluate distance traveled by train, Evaluate distance traveled by train: ...

Evaluate distance traveled by train: A plane flying at 525 miles per hour completes a trip in 2 hours less than another plane flying at 350 miles per hour.  What is the distan

Mr, Probability of A is 85% Probability of B is 45% Probability A and B 56%...

Probability of A is 85% Probability of B is 45% Probability A and B 56% What is the probability of not either A or B?

Natural numbers, To begin with we have counting numbers. These ...

To begin with we have counting numbers. These numbers are also known as natural numbers and are denoted by a symbol 'N'. These numbers are obtai

Share and divivdend, i m making a project on share and dividend. will u pls...

i m making a project on share and dividend. will u pls give the all of 10pages information ?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd