Hi,

I get this question from the assessment book.

In a sale, Nancy spent $2960 on some blouses and skirts. Each blouse cost $32 and each skirt cost 25% as much as each blouse. She bought 20 more skirts than blouses. How many skirts did she buy?

Ans : 25% x $32 = $8

$32 + $8 + $40

20 x $8 = $160

($2960 – $160) ÷ 40 = 70

70 + 20 = 90

I cannot understand why the last part is divided by 40. Isn’t it blouses and skirts share the unit ?

My understanding is as follow:

($2960 – $160)= $2800

$2800 ÷ 2 = $1400

$1400 + $160 = $1560

$1560 ÷ 40 = 39

39 + 20 = 59