Question

Show step by step......​

Answer 1

Explanation:

Amount paid for first 100 watches = (65% of 80) *100

`=(65)/(100)*80*100\\\\= 65*80\\= 5200`

Amount paid for next 50 watches = (55% of 80) * 50

`= (55)/(100)*80*50\\\\= 55 * 8 * 5\\\\= 2200`

Remaining watches = 280 -(100+ 55)

= 280 - 155 = 125

Amount paid for 125 watches = (45% of 80) *125

`= (45)/(100)*80*125\\\\= 45 * 20 * 5\\\\= 4500`

Amount received by the watch maker = 5200 + 2200 + 4500

= £ 11900