All ISEE Middle Level Quantitative Resources
Example Questions
Example Question #11 : How To Find The Square Root
Which is the greater quantity?
(A)
(B)
(A) is greater
(A) and (B) are equal
It is impossible to tell which is greater from the information given
(B) is greater
(A) is greater
since ,
.
Since ,
, and (A) is greater
Example Question #12 : How To Find The Square Root
Which is the greater quantity?
(A)
(B)
(A) is greater
(B) is greater
(A) and (B) are equal
It is impossible to tell which is greater from the information given
(A) and (B) are equal
The quantities are equal.
Example Question #13 : How To Find The Square Root
Which is the greater quantity?
(A)
(B)
(A) and (B) are equal
It is impossible to tell which is greater from the information given
(A) is greater
(B) is greater
(A) is greater
, so
This makes (A) greater.
Example Question #14 : How To Find The Square Root
Which is the greater quantity?
(A)
(B)
(B) is greater
(A) is greater
(A) and (B) are equal
It is impossible to tell which is greater from the information given
(A) and (B) are equal
The quantities are equal.
Example Question #15 : How To Find The Square Root
Which of the following is equal to ?
First, simplify the terms within the square root by multiplying.
Then, solve the sqaure root.
Example Question #16 : How To Find The Square Root
Which of the following is equal to ?
First, evalutate the terms under the radical:
Then, take the square root:
Example Question #17 : Squares / Square Roots
Which is the greater quantity?
(A)
(B)
(B) is greater
(A) is greater
(A) and (B) are equal
It is impossible to tell which is greater from the information given
(A) is greater
Therefore, .
Since ,
.
, so
, and (A) is greater.
Example Question #17 : How To Find The Square Root
Which of the following is equal to 39?
is equal to:
Therefore, is the correct answer.
Example Question #19 : Squares / Square Roots
is a positive integer;
is a negative integer;
.
Which is the greater quantity?
(a)
(b)
(b) is the greater quantity
It is impossible to determine which is greater from the information given
(a) is the greater quantity
(a) and (b) are equal
(a) is the greater quantity
, then
. Since
is negative, let
be the opposite of
. Therefore,
.
Two numbers that are each other's opposite have the same square, so
, so, since
and
are positive,
By substitution,
,
and
.
Example Question #20 : Squares / Square Roots
is a positive integer;
. Which is the greater quantity?
(a)
(b)
(a) and (b) are equal
(b) is the greater quantity
It is impossible to determine which is greater from the information given
(a) is the greater quantity
(a) is the greater quantity
If , then by the zero product principle, one or both of
and
is equal to 0. Since
is positive,
. Also, since
is positive,
is positive, and
. Thus,
.
All ISEE Middle Level Quantitative Resources
