Question bank AMC8 1988

The diagram shows part of a scale of a measuring device. The arrow indicates an approximate reading of

What is the product $8 \times 0.25 \times 2 \times 0.125?$

The value of

$$
\dfrac{1}{10} + \dfrac{2}{20} + \dfrac{3}{30}
$$

is

The figure consists of alternating light and dark squares. The number of dark squares exceeds the number of light squares by

If $\angle CBD$ is a right angle, then this protractor indicates that the measure of $\angle ABC$ is approximately

The value of

$$
\dfrac{(0.2)^3}{(0.02)^2}
$$

is

The expression $2.46 \times 8.163 \times (5.17 + 4.829)$ is closest to

Betty used a calculator to find the product $0.075 \times 2.56.$ She forgot to enter the decimal points. The calculator showed $19200.$ If Betty had entered the decimal points correctly, the answer would have been

An isosceles triangle is a triangle with two sides of equal length. How many of the five triangles on the square grid below are isosceles?

Chris’ birthday is on a Thursday this year. What day of the week will it be $60$ days after her birthday?

The value of $\sqrt{164}$ is

Suppose the estimated $20$ billion dollar cost to send a person to the planet Mars is shared equally by the $250$ million people in the U.S. Then each person’s share is

If rose bushes are spaced about $1$ foot apart, approximately how many bushes are needed to surround a circular patio whose radius is $12$ feet?

If $\diamond$ and $\triangle$ are whole numbers and $\diamond \times \triangle = 36,$ the largest possible value of $\diamond + \triangle$ is

What is the reciprocal of $\left(\dfrac{1}{2} + \dfrac{1}{3}\right)?$

Placing no more than one X in each small square, what is the greatest number of X’s that can be put on a $3 \times 3$ grid without getting three X’s in a row vertically, horizontally, or diagonally?

The shaded area is formed by two intersecting perpendicular rectangles, with dimensions as shown. Its area, in square units, is

The average weight of $6$ boys is $150$ pounds and the average weight of $4$ girls is $120$ pounds. The average weight of the $10$ children is

What is the $100$th number in the arithmetic sequence $1,$ $5,$ $9,$ $13,$ $17,$ $21,$ $25,$ $\ldots?$

The glass gauge on a cylindrical coffee maker shows there are $45$ cups left when the coffee maker is $36\%$ full. How many cups of coffee does it hold when it is full?