Samsung and Motorola companies together can manufacture 32 Cell phones in 4 days. After 8 days, Motorola Stopped manufacturing. Samsung took 12 more days to manufacture rest of the cell phones. If total of 100 cell phones were manufactured, the time taken by Motorola to manufacture 15 Cell phones is
1). 1 day
2). 2 days
3). 3 days
4). 4 days
It’s Given Samsung and Motorola companies together can manufacture 32 Cell phones in 4 days
∴ both can manufacture (32/4) = 8 Cell phones in 1 day.
⇒ Amount of cell phones manufactured in 8 days = 64 cell phones
Total cell phones manufactured = 100
Amount left = 100 – 64 = 36
⇒ Samsung took 12 days to manufacture 36
∴ It manufactured 3 Cell phones in 1 day.
Since in 1 day both can manufacture 8 Cell phones and out of which Samsung can manufacture 3 per day.
⇒ Motorola can manufacture 8 – 3 = 5 cell phones/day.
To manufacture 15 set Motorola will need 15/5 = 3 days.