Question

Rani made a necklace using 4 beads. She made another necklace using 8 beads. The third necklace that she made had 12 beads. How many beads will the fifth necklace have?

• A. 50
• B. 40
• C. 20
• D. 4

Answer 1

The correct option is C 20

The first necklace had 4 beads = $4\times 1$
The second necklace had 8 beads = $4\times 2$
The third necklace had 12 beads = $4\times 3$
$\therefore$ The fifth necklace will have $4\times 5$ = 20 beads.