Home
Class 12
MATHS
Five cities A,B,C,D,E are connected to e...

Five cities A,B,C,D,E are connected to each other by straight roads. What is the total number of such roads?

Text Solution

Verified by Experts

Five cities A, B, C, D, E are connected to each other by straight roads.
`:.` The number of such roses is `(""^5P_2)/(2!)=10.`
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    MBD PUBLICATION|Exercise QUESTION BANK|139 Videos

  • PRINCIPLES OF MATHEMATICAL INDUCTION

    MBD PUBLICATION|Exercise QUESTION BANK|16 Videos

Similar Questions

Explore conceptually related problems

An unbiased die of six faces, market with the integers 1,2,3,4,5,6, one on each face, is thrown thrice in succession. What is the total number of outcomes ?

A die of six faces marked with the integers 1,2,3,4,5,6 one on each face is thrown twice in succession, what is the total number of outcomes thus obtained?

2n = 16 is in a primary spermatocyte which is in metaphase of first meiotic division. What shal be the total number of chromatids in each of the secondary spermatocyte?

The rate law for the reaction, cA + dB to mP + nQ is rate = k [A]^( c) [B]^(d) . What is the total order of the reaction?

Consider three charged bodies A, B and C. If A and B repel each other and A attracts C, then what is the nature of force between B and C?