Average Problems
SSAT Middle Level · Flashcards · Application
SSAT MIDDLE LEVEL · FLASHCARDS
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QUESTION
What is the new average if the average of
8
8
8
numbers is
9
9
9
and a number
17
17
17
is added?
QUESTION
Find the missing number: the average of
6
,
10
,
x
6,10,x
6
,
10
,
x
is
9
9
9
.
QUESTION
What is the new average if the average of
10
10
10
numbers is
12
12
12
and one number
22
22
22
is removed?
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ANSWER
98
9
\frac{98}{9}
9
98
. Original sum is
10
×
12
=
120
10 \times 12 = 120
10
×
12
=
120
; subtract
22
22
22
to get
98
98
98
, then divide by
9
9
9
for new average.
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