Difference between revisions of "1962 AHSME Problems"
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== Problem 22 == | == Problem 22 == | ||
− | The number 121_b, written in the integral base b, is the square of an integer, for | + | The number <math>121_b</math>, written in the integral base <math>b</math>, is the square of an integer, for |
<math>\textbf{(A)}\ b = 10,\text{ only} \qquad | <math>\textbf{(A)}\ b = 10,\text{ only} \qquad |
Revision as of 22:08, 3 October 2014
Contents
- 1 Problem 1
- 2 Problem 2
- 3 Problem 3
- 4 Problem 4
- 5 Problem 5
- 6 Problem 6
- 7 Problem 7
- 8 Problem 8
- 9 Problem 9
- 10 Problem 10
- 11 Problem 11
- 12 Problem 12
- 13 Problem 13
- 14 Problem 14
- 15 Problem 15
- 16 Problem 16
- 17 Problem 17
- 18 Problem 18
- 19 Problem 19
- 20 Problem 20
- 21 Problem 21
- 22 Problem 22
- 23 Problem 23
- 24 Problem 24
- 25 Problem 25
- 26 Problem 26
- 27 Problem 27
- 28 Problem 28
- 29 Problem 29
- 30 Problem 30
- 31 Problem 31
- 32 Problem 32
- 33 Problem 33
- 34 Problem 34
- 35 Problem 35
- 36 Problem 36
- 37 Problem 37
- 38 Problem 38
- 39 Problem 39
- 40 Problem 40
- 41 See also
Problem 1
The expression is equal to:
Problem 2
The expression $\sqrt{\frac{4}{3}} - \sqrt{\frac{3}{4}$ (Error compiling LaTeX. Unknown error_msg) is equal to:
Problem 3
The first three terms of an arithmetic progression are , in the order shown. The value of
is:
Problem 4
If , then
equals:
Problem 5
If the radius of a circle is increased by unit, the ratio of the new circumference to the new diameter is:
Problem 6
A square and an equilateral triangle have equal perimeters. The area of the triangle is square inches.
Expressed in inches the diagonal of the square is:
Problem 7
Let the bisectors of the exterior angles at and
of
meet at
. Then, if all measurements are in degrees,
equals:
Problem 8
Given the set of numbers;
, of which one is
and all the others are
. The arithmetic mean of the
numbers is:
Problem 9
When is factored as completely as possible into polynomials and monomials with integral coefficients, the number of factors is:
Problem 10
A man drives miles to the seashore in
hours and
minutes. He returns from the shore to the starting point in
hours and
minutes.
Let
be the average rate for the entire trip. Then the average rate for the trip going exceeds
in miles per hour, by:
Problem 11
The difference between the larger root and the smaller root of is:
Problem 12
When is expanded the sum of the last three coefficients is:
Problem 13
varies directly as
and inverse as
. When
and
. Find
when
and
.
Problem 14
Let be the limiting sum of the geometric series
, as the number of terms increases without bound. Then
equals:
Problem 15
Given with base
fixed in length and position. As the vertex
moves on a straight line,
the intersection point of the three medians moves on:
Problem 16
Given rectangle with one side
inches and area
square inches.
Rectangle
with diagonal
inches is similar to
. Expressed in square inches the area of
is:
Problem 17
If and
, then
, in terms of
, is:
Problem 18
A regular dodecagon ( sides) is inscribed in a circle with radius
inches. The area of the dodecagon, in square inches, is:
Problem 19
If the parabola passes through the points
, and
, the value of
is:
Problem 20
The angles of a pentagon are in arithmetic progression. One of the angles in degrees, must be:
Problem 21
It is given that one root of , with
and
real numbers, is
. The value of
is:
Problem 22
The number , written in the integral base
, is the square of an integer, for
Problem 23
In ,
is the altitude to
and
is the altitude to
.
If the lengths of
, and
are known, the length of
is:
Problem 24
Three machines working together, can do a job in
hours.
When working alone,
needs an additional
hours to do the job;
, one additional hour; and
,
additional hours. The value of
is:
Problem 25
Given square with side
feet. A circle is drawn through vertices
and
and tangent to side
. The radius of the circle, in feet, is:
Problem 26
For any real value of the maximum value of
is:
Problem 27
Let represent the operation on two numbers,
and
, which selects the larger of the two numbers,
with
. Let
represent the operator which selects the smaller of the two numbers, with
.
Which of the following three rules is (are) correct?
Problem 28
The set of -values satisfying the equation
consists of:
Problem 29
Which of the following sets of -values satisfy the inequality
?
Problem 30
Consider the statements:
How many of these imply the negative of the statement " and
are both true?"
Problem 31
The ratio of the interior angles of two regular polygons with sides of unit length is . How many such pairs are there?
Problem 32
If for
and
, find
.
Problem 33
The set of -values satisfying the inequality
is:
Problem 34
For what real values of does
have real roots?
Problem 35
A man on his way to dinner short after 6: 00 p.m. observes that the hands of his watch form an angle of .
Returning before 7: 00 p.m. he notices that again the hands of his watch form an angle of
.
The number of minutes that he has been away is:
Problem 36
If both and
are both integers, how many pairs of solutions are there of the equation
?
Problem 37
is a square with side of unit length. Points
and
are taken respectively on sides
and
so that
and the quadrilateral
has maximum area. In square units this maximum area is:
Problem 38
The population of Nosuch Junction at one time was a perfect square.
Later, with an increase of , the population was one more than a perfect square.
Now, with an additional increase of
, the population is again a perfect square.
The original population is a multiple of:
Problem 39
Two medians of a triangle with unequal sides are inches and
inches.
Its area is
square inches. The length of the third median in inches, is:
Problem 40
The limiting sum of the infinite series, whose
th term is
is:
See also
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.