Book shelf $240
Kitchen table $400
Sofa bed $90
Study table $130

Bobby has a $500 shopping voucher. He wants to buy 2 items. How many diffferent ways can Bobby spend his money?

	Book shelf	Kitchen table	Sofa bed	Study table
Book shelf	-	$640 x	$330 ✓	$370 ✓
Kitchen table	-	-	$490 ✓	$530 x
Sofa bed	-	-	-	$220 ✓
Study table	-	-	-	-

Cost of the book shelf and the kitchen table = 400 + 240 = $640 (Exceed $500)
Cost of the book shelf and the sofa bed = 240 + 90 = $330 (Under $500)
Cost of the book shelf and the study table = 240 + 130 = $370 (Under $500)
Cost of the kitchen table and the sofa bed = 400 + 90 = $490 (Under $500) 
Cost of the kitchen table and the study table = 400 + 130 = $530 (Exceed $500)
Cost of the sofa bed and the study table = 90 + 130 = $220 (Under $500)

Number of ways that Bobby can spend his money: 4

Answer(s): 4