天山 04-13

[schung0529]

Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd books from the right. If 2 books to be the left of the atlas and 4 books to the right of the atlas are removed from the shelf, how many books will be left on the shelf?

A. 56
B. 57
C. 58
D.61
E. 63

[waleaaa]

先從題目得知　總共有 30 + 33 - 1 = 62 本書
故拿走6本後　會剩 62 - 6 = 56 本