Saved Bookmarks
| 1. |
The of a pencil is 5 R.s. more than the cost of an eraser. If the cost of 8 pencils and 10 erasers is 400, find the cost of each |
|
Answer» let the COST of each eraser be RUPEES X therefore, the cost of each PENCIL is (x + 5) according to the condition, 8(x + 5) + 10x = 400 8x + 40 + 10x = 400 18x = 400 - 40 = 360 x = 360/18 x = 20 thus, the price of each eraser is rupees 20 and the cost of each pencil is rupees 25. |
|