Question

简单英文题数学题求解（好的给高分）

22. In the Coin Game, you toss three coins at the same time. You win only if the 3 coins
are all showing heads, or if the 3 coins are all showing tails. If you play the game
once only, what is the probability of winning?
(A) 1
6 (B) 1
4 (C) 2
27 (D) 2
3 (E) 1
3
23. Molly assigns every letter of the alphabet a dierent
whole number value. She nds the value of a word
by multiplying the values of its letters together. For
example, if D has a value of 10, and I has a value of 8,
then the word DID has a value of 10810 = 800. The
table shows the value of some words. What is the value
of the word MATH?
(A) 19 (B) 840 (C) 420
(D) 190 (E) 84
Word Value
TOTE 18
TEAM 168
MOM 49
HOME 70
MATH ?
24. How many dierent pairs (m; n) can be formed using numbers from the list of integers
f1; 2; 3; : : : ; 20g such that m < n and m + n is even?
(A) 55 (B) 90 (C) 140 (D) 110 (E) 50
25. Tanner wants to ll his swimming pool using two hoses, each of which sprays water
at a constant rate. Hose A lls the pool in a hours when used by itself, where a is
a positive integer. Hose B lls the pool in b hours when used by itself, where b is a
positive integer. When used together, Hose A and Hose B ll the pool in 6 hours.
How many dierent possible values are there for a?
(A) 5 (B) 6 (C) 9 (D) 10 (E) 12
5.Andy, Jen, Sally, Mike, and Tom are sitting in a row of ve seats. Andy is not beside
Jen. Sally is beside Mike. Who cannot be sitting in the middle seat?
(A) Andy (B) Jen (C) Sally (D) Mike (E) Tom
要有过程！

Answer 1

22. 1/4(2/8) 选B
23. 420 选C (M=7 A=4 T=3 H=5)
24. (1+2+3+4+5+6+7+8+9)*2=90 选B
25. 12,12 15,10, 18,9 24,8 42,7 所以是五种 选A
26. Tom 选E
过程不懂可问我。