๐Ÿ“ฑ Handphones Bar Model Adventure!

Solve the mystery using Singapore Math Bar Models

The Problem:
A shop sold 32 handphones in the morning and 5/8 of the remainder in the afternoon. After that, it was left with 1/4 of the handphones. How many handphones were sold altogether?

Let's start by understanding what "1/4 of the handphones" means!

If the shop was left with 1/4 of the handphones, how many equal parts should we divide the TOTAL into?

Great! Now let's create our bar model

The total handphones are divided into 4 equal parts, and 1 part was left.

Sold Altogether (3 parts)
Left (1 part)
Total Handphones (4 parts)

How many parts were sold altogether?

Now let's think about the remainder and afternoon sale

The problem says "5/8 of the remainder" was sold in the afternoon.

Morning (4 small parts)
Afternoon (5 small parts)
Left (3 small parts)
Total Handphones (12 small parts)

Key insight: The "Left" section is the same in both stories!

If 4 small parts (morning sale) = 32 handphones, how many handphones is 1 small part?

Morning: 32
Afternoon: 40
Left: 24
Total: 96 Handphones

Final Question: How many handphones were sold altogether?

Add the morning sale + afternoon sale