The Bookstore Puzzle
Emma went to a bookstore with £20. She bought 3 notebooks and 2 pens. Each notebook cost £3.50, and all the pens cost the same amount. After paying, she had £2.50 left.
How much did each pen cost?
Word Problem
A bridge is built across a river. One quarter of the bridge is over the left bank of the river and one third of the bridge is over the right bank. The river is 120 m wide. How long is the bridge?
Total money Emma had: £20
ReplyDeleteMoney left after shopping: £2.50
→ So, she spent: £20 - £2.50 = £17.50
Cost of 3 notebooks:
3 × £3.50 = £10.50
Remaining money spent on pens:
£17.50 - £10.50 = £7.00
She bought 2 pens:
£7.00 ÷ 2 = £3.50 per pen