In how many ways a garland can be made from exactly 10 flowe... | MATH - DEFINITON OF COMBINATIONS, CONDITION COMBINATIONS, DIVISION INTO GROUPS, DERANGEMENTS | SolveeIt | Solveeit

Today, August 18

Question

In how many ways a garland can be made from exactly 10 flowers

A

10 !

B

9 !

C

2 (9!)

D

$\frac{9!}{2}$

Answer

$\frac{9!}{2}$

Explanation

Solution

A garland can be made from 10 flowers in $\frac{1}{2}(9!)$ ways

[ $\because$ n flower's garland can be made in $\frac{1}{2}(n - 1)!$ ways]