Difference between revisions of "1951 AHSME Problems"
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== Problem 24 == | == Problem 24 == | ||
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+ | <math> \frac{2^{n+4}-2(2^{n})}{2(2^{n+3})} </math> when simplified is: | ||
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+ | <math> \textbf{(A)}\ 2^{n+1}-\frac{1}{8}\qquad\textbf{(B)}\ -2^{n+1}\qquad\textbf{(C)}\ 1-2^{n}\qquad\textbf{(D)}\ \frac{7}{8}\qquad\textbf{(E)}\ \frac{7}{4} </math> | ||
[[1951 AHSME Problems/Problem 24|Solution]] | [[1951 AHSME Problems/Problem 24|Solution]] |
Revision as of 10:23, 28 August 2011
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 Problem 41
- 42 Problem 42
- 43 Problem 43
- 44 Problem 44
- 45 Problem 45
- 46 Problem 46
- 47 Problem 47
- 48 Problem 48
- 49 Problem 49
- 50 Problem 50
- 51 See also
Problem 1
The percent that is greater than
is:
Problem 2
A rectangular field is half as wide as it is long and is completely enclosed by yards of fencing. The area in terms of
is:
Problem 3
If the length of a diagonal of a square is , then the area of the square is:
Problem 4
A barn with a flat roof is rectangular in shape, yd. wide,
yd. long and
yd. high. It is to be painted inside and outside, and on the ceiling, but not on the roof or floor. The total number of sq. yd. to be painted is:
Problem 5
Mr. A owns a home worth dollars. He sells it to Mr. B at a
profit based on the worth of the house. Mr. B sells the house back to Mr. A at a
loss. Then:
Problem 6
The bottom, side, and front areas of a rectangular box are known. The product of these areas is equal to:
Problem 7
An error of is made in the measurement of a line
long, while an error of only
is made in a measurement of a line
long. In comparison with the relative error of the first measurement, the relative error of the second measurement is:
Problem 8
The price of an article is cut To restore it to its former value, the new price must be increased by:
Problem 9
An equilateral triangle is drawn with a side length of A new equilateral triangle is formed by joining the midpoints of the sides of the first one. then a third equilateral triangle is formed by joining the midpoints of the sides of the second; and so on forever. the limit of the sum of the perimeters of all the triangles thus drawn is:
Problem 10
Of the following statements, the one that is incorrect is:
Problem 11
The limit of the sum of an infinite number of terms in a geometric progression is $\frac {a}{1 \minus{} r}$ (Error compiling LaTeX. Unknown error_msg) where denotes the first term and $\minus{} 1 < r < 1$ (Error compiling LaTeX. Unknown error_msg) denotes the common ratio. The limit of the sum of their squares is:
$\textrm{(A)}\ \frac {a^2}{(1 \minus{} r)^2} \qquad\textrm{(B)}\ \frac {a^2}{1 \plus{} r^2} \qquad\textrm{(C)}\ \frac {a^2}{1 \minus{} r^2} \qquad\textrm{(D)}\ \frac {4a^2}{1 \plus{} r^2} \qquad\textrm{(E)}\ \text{none of these}$ (Error compiling LaTeX. Unknown error_msg)
Problem 12
At o'clock, the hour and minute hands of a clock form an angle of:
Problem 13
can do a piece of work in
days.
is
more efficient than
. The number of days it takes
to do the same piece of work is:
Problem 14
In connection with proof in geometry, indicate which one of the following statements is incorrect:
Problem 15
The largest number by which the expression is divisible for all possible integral values of
, is:
Problem 16
If in applying the quadratic formula to a quadratic equation
it happens that , then the graph of
will certainly:
Problem 17
Indicate in which one of the following equations is neither directly nor inversely proportional to
:
Problem 18
The expression is to be factored into two linear prime binomial factors with integer coefficients. This can be one if
is:
Problem 19
A six place number is formed by repeating a three place number; for example, or
, etc. Any number of this form is always exactly divisible by:
Problem 20
When simplified and expressed with negative exponents, the expression is equal to:
Problem 21
Given: and
. The inequality which is not always correct is:
Problem 22
The values of in the equation:
are:
Problem 23
The radius of a cylindrical box is inches and the height is
inches. The number of inches that may be added to either the radius or the height to give the same nonzero increase in volume is:
Problem 24
when simplified is:
Problem 25
Problem 26
Problem 27
Problem 28
Problem 29
Problem 30
Problem 31
Problem 32
Problem 33
Problem 34
Problem 35
Problem 36
Problem 37
Problem 38
Problem 39
Problem 40
Problem 41
Problem 42
Problem 43
Problem 44
Problem 45
Problem 46
Problem 47
Problem 48
Problem 49
The medians of a right triangle which are drawn from the vertices of the acute angles are and
. The value of the hypotenuse is:
Problem 50
Tom, Dick and Harry started out on a -mile journey. Tom and Harry went by automobile at the rate of
mph, while Dick walked at the rate of
mph. After a certain distance, Harry got off and walked on at
mph, while Tom went back for Dick and got him to the destination at the same time that Harry arrived. The number of hours required for the trip was: