Question

Find the total number of ways in which one can wear three distinct rings on the five fingers of one's right hand, given that one is allowed to wear more than one ring on a finger.

• A. 120
• B. 360
• C. 480
• D. 210

Answer 1

The correct option is D 210

First ring can be placed in $5$ ways .

second ring can be placed in$6$ ways.

($5$ rings+above or below of the $1^{st}$ ring)

Similarly $3^{rd}$ ring can be placed in $4$ ways ($5$ rings + between $2$ rings +above or below of $1$ or $2$nd ring)

$5\times 6\times 7$=$210$