Question

find the value of n, if n!/( n - 2 )!2! and n!/( n - 4 )! 4! are in the ratio 2 : 1​

Answer 1

Answer:

CBSE Class 9 Science, Improvement in Food Resources: Chapter notes (Part-I)

Gurmeet Kaur

Created On: Nov 28, 2017

CBSE Class 9, Improvement in Food Resources: Notes

This article brings you the CBSE Class 9 Science notes on chapter 15 ‘Improvement in Food Resources’ (Part-I). These chapter notes are prepared by the subject experts and cover every important topic from the chapter. At the end of the notes you can try the questions asked from the discussed set of topics. These questions will help you to track your preparation level and get a hold on the subject.

CBSE Class 9 Science Syllabus 2017-2018

Main topics covered in this part of CBSE Class 9 Science, Improvement in Food Resources: Chapter Notes, are:

Answer 2

Answer:

n = 5,

n = 0 (Rejected)

Since on putting in the question it does not satisfy given condition.