Question

There are 68 beads. To make a bracelet, Jenny divides the beads into 4 equal groups. There will be beads in each group.

• A. 17
• B. 18
• C. 19
• D. 20

Answer 1

The correct option is A 17

Here, we have to divide 68 into 4 equal groups. This means, we have to divide 68 by 4.

$68÷4$

As the numbers are quite large, let's use the method of rods and blocks. To do that, we have to expand 68 into tens and ones.

$68=60+8$

Now, we have 6 rods and 8 blocks.
Let's divide rods first. As there are 4 groups, we can give 1 rod to each group.

$6-4=2$

Now, we are left with 2 rods and 8 blocks, let's count these as blocks.

2 rods = 20 blocks.

This means, we have; $20+8=28$ blocks in total.
Now, we have to divide these 28 blocks into 4 groups.

$28÷4=7$

Which means, in each group we have 1 rod and 7 blocks. This is equal to 17 blocks.
We can say that:

$68÷4=17$

Therefore, each group will have 17 beads.