Latest Posts

The Value Of 2n 1 3 5 2n 3 2n 1 Is

1) (2n)!/n! 2) (2n)!/2n 3) n!/(2n)! 4) None of these Answer: (1) (2n)!/n! Solution: Given, 2n{1.3.5… … (2n-3)(2n-1)} Multiply and... View Article

Out Of 10 Points In A Plane 6 Are In A Straight Line The Number Of Triangles Formed By Joining These Points Are

1) 100 2) 150 3) 120 4) None of these Answer: (1) 100 Solution: If all 10 points are collinear,... View Article

The Greatest Possible Number Of Points Of Intersection Of 8 Straight Lines And 4 Circle Is

1) 32 2) 64 3) 76 4) 104 Answer: (4) 104 Solution: 8 straight lines meet at a point in... View Article

In A Plane There Are 37 Straight Lines Of Which 13 Passes Through Point A And 11 Passes Through Point B

1) 535 2) 601 3) 728 4) None of the above Answer: (1) 535 Solution: The point of intersection of... View Article

A Parallellogram Is Cut By Two Sets Of M Lines Parallel To Its Sides The Number Of Parallelograms Thus Formed Is

1) (mC2)2 2) (m+1C2)2 3) (m+2C2)2 4) None of these Answer: (3) (m+2C2)2 Solution: We need two sets of parallel... View Article

There Are N Straight Lines In A Plane No Two Of Which Are Parallel And No Three Passes Through The Same Point

1) [n(n-1)(n-2)]/8 2) [n(n-1)(n-2)(n-3)]/6 3) [n(n-1)(n-2)(n-3)]/8 4) None of the above Answer: (3) [n(n-1)(n-2)(n-3)]/8 Solution: The required number of fresh... View Article

There Are M Points On A Straight Line Ab And N Points On Another Line Ac None Of Them Being The Point A Triangles Are Formed

1) (m+n-2)/(m+n) 2) (m+n-2)/2 3) (m+n-2)/(m+n+2) 4) None of these Answer: (1) (m+n-2)/(m+n) Solution: Given, there are m points on... View Article

Six Points In A Plane Be Joined In All Possible Ways By Indefinite Straight Lines And If No Two Of Them Be Coincident Or Parallel

1) 105 2) 45 3) 51 4) None of these Answer: (3) 51 Solution: Number of lines formed with 6... View Article

Number Of Parallelograms Formed From A Set Of Four Parallel Lines Intersecting Another Set Of Three Parallel Lines Is

1) 6 2) 18 3) 12 4) 9 Answer: (2) 18 Solution: Number of required parallelograms = 4C2 x 3C2... View Article

Let Tn Denote The Number Of Triangles Formed Using The Vertices Of A Regular Polygon Of N Sides If Tn1 Tn 21 Then N Equals

1) 5 2) 7 3) 6 4) 4 Answer: (2) 7 Solution: Tn = nC3 n+1C3 – nC3 = 21... View Article

There Are N Points In A Plane Of Which P Points Are Collinear How Many Lines Can Be Formed From These Points

1) (n – p)C2 2) nC2 – pC2 3) nC2 – pC2 + 1 4) nC2 – pC2 – 1... View Article

The Number Of Triangles Formed By Choosing The Vertices From A Set Of 12 Points Seven Lie Same Straight Line Is

1) 185 2) 175 3) 115 4) 105 Answer: (1) 185 Solution: Given 12 set of points. Number of triangles... View Article

Given Six Line Segments Of Lengths 234567 Units The Number Of Triangles That Can Be Formed By These Lines Is

1) 6C3 – 7 2) 6C3 – 6 3) 6C3 – 5 4) 6C3 – 4 Answer: (1) 6C3 –... View Article

The Number Of Diagonals Of A Polygon Of M Sides Is

1) 1/(2!) m(m-5) 2) 1/(2!) m(m-1) 3) 1/(2!) m(m-3) 4) 1/(2!) m(m-2) Answer: (3) 1/(2!) m(m-3) Solution: By the formula,... View Article

Number Of Straight Lines That Can Be Formed By Joining 20 Points No Three Of Which Are In The Same Straight Line Except 4

1) 183 2) 186 3) 197 4) 185 Answer: (4) 185 Solution: Given, 20 points out of which 4 are... View Article

«
1
…
3,790
3,791
3,792
3,793
3,794
…
5,472
»