Answer:
a) 52 beads
b) 8 beads
Explanation:
a) First find how many beads fills one inch by dividing 12 by 3.
Number of beads that fill 1 inch = 12 ÷ 3
= 4 beads
Now, to find the beads need to fill 13 inches string, multiply 4 and 13.
Number of beads that fill 13 inches = 4 * 13
= 52 beads
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
b) Number of beads that fill 1 inch = 4 beads
Number of beads to be removed = 4 + 4
= 8 beads