前往旅游目的地的往返车票可享受总票价 10% 的折扣。此外，4 人或以上的团体可享受总票价 5% 的折扣。如果单程单人票价为 100 卢比，购买往返票的一组 5 名游客将收取 _________ 卢比。
(一) 850
(乙) 900
(C) 800
(四) 1000答案：(一)
解释：
One way single person fare is 100. Therefore 2 way
is 200.
For 5 persons it is 200 x 5 = 1000
Now 1st discount is of 10 % on total fare, which is
100( 10 % of 1000). And as the group is of more than 4,
an additional discount of 5 % on total fare, which is
50( 5 % of 1000).
Hence total discount is equal to 100 + 50 = 150.
Therefore tickets are charged at Rs 1000 - 150 = 850. 这个问题的测验