How many can speak both english and russian, Mathematics

Assignment Help:

In a group of 1000 people, there are 750 people will speak English and 400 people will speak Russian. How many may speak English only? How many will speak Russian? How many can speak both English and Russian?

Solution:              Total number of people = 1000

                n (E) = 750

                n (R) = 400

                n (E υ R) = n (E) + n (R) - n (E ∩R)

                n (E ∩ R) = 750 + 400 - 1000

                = 150 speaking English and Russian both.

                People speaking only English = n (E) - n (E∩R) = 750 - 150 = 600

                People speaking only Russian = n (R) - n (E∩ R) = 400 - 150 = 250.

 


Related Discussions:- How many can speak both english and russian

Linear programming, function [x, z] = readSolution(tableau, basis)

function [x, z] = readSolution(tableau, basis)

Example of function, Example  Suppose the demand and cost functio...

Example  Suppose the demand and cost functions are given by          Q = 21 - 0.1P and C = 200 + 10Q Where,          Q - Quantity sold

Real and distinct roots, Now we start solving constant linear, coefficient ...

Now we start solving constant linear, coefficient and second order differential and homogeneous equations. Thus, let's recap how we do this from the previous section. We start alon

Calculus, what is a domain of a function?

what is a domain of a function?

Can u please tell me how to solve, a triangle with side lengths in the rati...

a triangle with side lengths in the ratio 3:4:5 is inscribed in a circle of radius 3.what is the area of the triangle.

Advantages of peer interaction in learning maths, Can you think of some mor...

Can you think of some more advantages of peer interaction and child-to child learning? If you agree that children learn a lot from each other, then how can we maximise such oppo

Integration of sin ³a.cos ³a , writing sin 3 a.cos 3 a = sin 3 a.cos 2 a.co...

writing sin 3 a.cos 3 a = sin 3 a.cos 2 a.cosa = sin 3 a.(1-sin 2 a).cosa put sin a as then cos a da = dt integral(t 3 (1-t 2 ).dt = integral of t 3 - t 5 dt = t 4 /4-t 6 /6

Prove that prims algorithm produces a minimum spanning tree, Prove that Pri...

Prove that Prim's algorithm produces a minimum spanning tree of a connected weighted graph. Ans: Suppose G be a connected, weighted graph. At each iteration of Prim's algorithm

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