Class 11

Math

Co-ordinate Geometry

Straight Lines

Assertion :If the postman delivers 1332 card to the students then number of students are 36.

Reason :If there are n students then total number of cards are n (n-1).

- Both (A) & (R) are individually true & (R) is correct explanation of (A),
- Both (A) & (R) are individually true but (R) is not the correct (proper) explanation of (A).
- (A)is true but (R} is false,
- (A)is false but (R) is true.

Hence total number of cards =$n(n−1)$

$⇒n_{2}−n−1332=0⇒n=37$

Assertion is false.