GMAT Math Flashcards
(24 cards)
1
Q
12x6
A
72
2
Q
12x7
A
84
3
Q
12x8
A
96
4
Q
12x9
A
108
5
Q
12x11
A
121
6
Q
1/8
A
0.125
7
Q
3/8
A
1/8+2/8= 0.125+25 = 0.375
8
Q
X/9
A
0.XXXX
9
Q
ExE
A
E
10
Q
OxE
A
E
11
Q
OxO
A
O
12
Q
E+E
A
E
13
Q
E+O
A
O
14
Q
O+O
A
E
15
Q
Prime List
A
2/3/5/7/11/13/17/19/23/29/31/37/41/43/47/53/59/61/67/71/73/79/83/89/97
16
Q
Simple Interest
A
Principal x r x t
17
Q
Compound Interest
A
P x (1+r)^t
18
Q
Combined work
A
AB/A+B or ABC/AB+AC+BC etc…
19
Q
Overlapping Sets / Distance-Time Qs
A
Make Chart Right Away!
20
Q
Combintations
A
Unordered Group n!/k!(n-k)!
21
Q
Permutations
A
Ordered Group n!/(n-k)!
22
Q
Special Right Triangles
A
3:4:5 and 5:12:13
23
Q
30-60-90 Side lengths
A
x : x*sqrt(3) : 2x
24
Q
45-45-90 Side lengths
A
x : x : x:*sqrt(2)
