Form 1 Maths, get answer

kls12

In a game, May throws  a coin 5 times. If the outcome is Head, she will get 3 points. If the outcome is Tailer, then she will get 2 points.

Q: Find May's maximum points if she got more heads than tails?


Tks

kls12

PINKAVA 發表於 13-10-25 13:27
3＊5+0＊2=15

It may have different ans.

A) Tails able to 0, -> 3＊5+0＊2=15
B) Tails not able to 0, -> 3＊4+1＊2=14
C) "Tails" means at least 2 -> 3*3+2*2=13

Which one is correct?

kls12

tommythumb 發表於 13-10-25 15:19
題目係佢最高可以有幾多分，所以咪 A囉。

問題是"FIVE HEADS" 是否在"more heads than tails"  有效?

有些人話tail=0是無效的

kls12

JustAParent 發表於 13-10-25 19:18
問題係，究竟想教乜？咁都係中一數？

是中一數學,但重點不同 ,太深定太淺?
大部分人的答案是A,但官方答案是B,有些人的解釋是不可0.
但既然是捉字失,用'S'應該至少有2吧,所以覺得是C更合適.

是嗎?