If m parallel lines in plane are intersected by n parallel lines, then number of

Question

If m parallel lines in plane are intersected by n parallel lines, then number of parallelograms formed is

Options:

A . m!n!(2!)2

B . m!n!(m−2)!(n−2)!

C . m!n!(2!)2(m−2)!(n−2)!

D . (m+n)!(m+n−2)!2!

Answer: Option C
:
C

^{m} C_{2} .^{n} C_{2}

Was this answer helpful ?

Next Question

More Questions on This Topic :

Question 1. The number of straight lines joining 8 points on a circle is ....

Question 2. The number of ways of arranging 6 players to throw the hand ball so that the oldest player may not throw first is &....ball so that the oldest player may not throw first is

Question 3. 15 busses fly between Hyderabad and Tirupathi.The number of ways can a man go to tirupathi from Hyderabad by a bus ....Hyderabad by a bus and return by a different bus is

Question 4. The number of ways in which 8 boys be seated at a round table so that two particular boys are next to each other is....

Question 5. The number of nine digit numbers that can be formed with different digits is ....

Question 6. An auto mobile dealer provides motor cycles and scooters in 3 body patterns and 4 different colours each. The numbe....different colours each. The number of choices open to customer is

Question 7. Total 4 digit odd numbers that can be formed, if the digits used is not to be repeated again is....

Question 8. The number of four digit even numbers that can be formed with 0,1,2,3,7,8, is ....

Question 9. The number of permutations of n dissimilar things taken not more than ‘r’ at a time, when each thing may&#....time, when each thing may occur any number of times is

Question 10. There are 5 doors to a lecture room. The number of ways that a student can enter the room and leave it by a differe....enter the room and leave it by a different door is

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0