再接着求助两道题吧.
A store purchase 20 coats that each cost an equal amount and then sold each of the 20 coats at a euqal price , what was the store's gross profit on the 20 coats ?
1).If the selling price per coat had been twice as much , the store's gross profit on the 20 coats would have been 2400
2) If the store selling price per coat had been $2 more ,the store's gross profit on the 20 coats would have been 440
这道题偶觉得应该是C, 可答案是B。 如果B对,那A也应该对阿!!
2。Which of the following lists the number of points at which a circle can intersect a triangle?
A. 2, 6 only
B. 2,4,6 only
C. 1,2,3,6 only
D. 1,2,3,4,6 only
E. 1,2,3,4,5,6.
这道题什么意思啊??   |