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Recent questions tagged problem-solving-and-data-analysis

Charlie bought a calculator which costs $\$75$ on sale at $5\%$ off. How much did he pay including $5\%$ sales tax.

asked Apr 2, 2019 by priyanka.clay6

1 answer

A jar has 10 marbles, 4 yellow, 2 red and the rest white. What is the probability that a white marble were not removed ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

If $9 \sqrt{12} - 4\sqrt{27} = n\sqrt{3}$, what is the value of $n$ ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

Catherine scored 95, 87, 90 in three of her four math tests. If her average score for all four test was 90, what did she score on her fourth test ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

What is the measure of the central angle for the sector for the sector for representing medicare expenses ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

What is the average (arithmetic mean) of $2^{10}$ and $2^{20}$ ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

Sharon can type 35 pages in 20 minutes. At this rate how many pages can she type in 10 minutes ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

What is the average (arithmetic mean) of $6x^2+3x-8, \; 3x^2+2x-2$ and $3x^2+3$ ?

asked Apr 2, 2019 by priyanka.clay6

1 answer

In a group $\frac{5}{9} $ of the members are boys. What is the ratio of girls to boys in the group ?

asked Apr 1, 2019 by priyanka.clay6

1 answer

A road contractor is being hired to fix up roads in a county for 20 days. The contractor hires 15 men to finish this. How many days will he take if hires 30 men ?

asked Apr 1, 2019 by priyanka.clay6

1 answer

Ellena can read 15 pages in 10 minutes. How long will it take for her to complete the book which contains 225 pages ?

asked Apr 1, 2019 by priyanka.clay6

1 answer

If $3^4 = 9^x$, what is the value of $x$?

asked Apr 1, 2019 by priyanka.clay6

1 answer

What is the percentage increase of $ \$ 120 $ to $ \$ 150 $ is

asked Apr 1, 2019 by priyanka.clay6

1 answer

The area of a square is increased by $25\%$. What is the percentage increase of its perimeter ?

asked Apr 1, 2019 by meena.clay6

1 answer

Two cars leave the same point simultaneously going in the same direction, along a straight flat road, one at 40 miles per hour and the other at 50 miles per hour. After how many minutes will the cars be 5 miles apart ?

asked Apr 1, 2019 by priyanka.clay6

1 answer

There are 100 people on a line. Michael is the $35^{th}$ person and Ali is the $65^{th}$ person. If a person on line is chosen at random, what is the probability that the person is standing between Michael and Ali ?

asked Apr 1, 2019 by priyanka.clay6

1 answer

asked Mar 31, 2019 by priyanka.clay6

1 answer

Based on the graph below, how far in miles did Mare drive between 8.30 and 9.00 ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

A jar has with 25 marbles of 5 red, 6 white and 14 blue. If you remove 1 marble at a time randomly, what is the minimum number that you must remove to be certain that you have at least 2 marbles of each color ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

A jacket has a marked retail price of $ \$ 120$, but is on sale at a $20 \%$ discount. If a customer has a coupon for $10 \%$ off of the sale price, and if the sales tax is $5 \%$, what is the final price of this jacket, including all discount and tax ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

A pool can hold 30,000 gallons of water. If is $\frac{1}{4}^{th}$ full. A pump can deliver $'g'$ gallons of water every $m$ minute. If the pumping company charges $'d'$ dollars per minutes, how much will it cost in dollars to fill the pool ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

If $y$ varies inversely as the cube of $x$ and $y = 64$, when $x=4$, then what is the value of $y$ when $x =3$ ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

A dance studio charges $ \$ 10$ per student for its morning class and $ \$ 15 $ per student for its evening class. Three times as many students attended the evening class as attended the morning class. If the dance studio earns $ \$ 2200$ on Friday, how many students attended the morning class ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

County $Y$ consists of two districts. One district has an area of 35 square miles and a population density of 390 people per square mile, and the other district has an area of 50 square mile population density of 300 people per sq. mile. What is the population density in people per sq. mile, for all county $Y$ ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

What percentage is 0.2 cm in 2 meters ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

John spends 2 hours on Tuesday, Thursday and Saturday practicing football. On Monday he practices for 90 minutes and on Friday for 1 hour. What is the median time he spends practicing football in a given week ?

asked Mar 31, 2019 by priyanka.clay6

1 answer

The graph represents the favorite game of 100 individuals . What area of the pie chart in degrees is represented by those who chose basketball as their favorite game ?

asked Mar 29, 2019 by meena.clay6

1 answer

$\sqrt{20}+\sqrt{18}$ is equivalent to

asked Mar 29, 2019 by meena.clay6

1 answer

Maggy has enough cereal to last for 40 days. If she increases her consumption of cereal by $20\%$ everyday, for how many days will the cereal last ?

asked Mar 26, 2019 by meena.clay6

1 answer

The chart below shows the scores of five students in a Math class. If John's score was equal to the mode for test 1 and to the median for test 2 , then which of the five students represents John's scores ?

asked Mar 26, 2019 by meena.clay6

1 answer

Six employees working in a lending company pay $\$250,\$300, \$150,\$200,\$375$ and $\$350$ as income tax. What is the mean income tax paid by their employees ?

asked Mar 26, 2019 by meena.clay6

1 answer

A die is rolled 150 times and its outcome are recorded as below : Find the probability of getting an odd number .

asked Mar 26, 2019 by meena.clay6

1 answer

Which of the following is equivalent $a^{2/7}$ for all values of a?

asked Mar 19, 2019 by meena.clay6

1 answer

A prayer hall has pillars in the shape of cylinders. A painter is being asked to paint the pillars. His fee is given by the formula $Kn2 \pi rh$, where $n$ stands for number of the pillars, $r$ for radius, $h$ for height and $K$ is a constant. If he is asked to use an expensive paint which factor in the expression would change ?

asked Mar 19, 2019 by meena.clay6

1 answer

Convert $39^{\circ}F$ to $^{\circ}$Celsius scale

asked Mar 19, 2019 by meena.clay6

1 answer

The formula to convert Celsius scale to Fahrenheit scale is given by $F=1.8\;c+32$. Which of the following expressions refer to convert Fahrenheit to Celsius scale ?

asked Mar 18, 2019 by meena.clay6

1 answer

Which of the following has no co-relation ?

asked Mar 4, 2019 by meena.clay6

1 answer

Given 1 decagram = 10 grams, 1000 milligram = 1 gram. A hospital stores a type of medicine in 1.5 decagram containers. How many milligrams are there in one container ?

asked Mar 4, 2019 by meena.clay6

1 answer

How many difficult sums can be made by adding any two different numbers in the list given below ? $\{1,2,4,8,16,32,33\}$?

asked Jan 22, 2019 by meena.clay6

1 answer

The average of $6,8,10,13,15, x$ is $11.5$. What is the median ?

asked Jan 22, 2019 by meena.clay6

1 answer

The mean of $a,b$ and $c$ is $12$. If $b=3a$ and $c=7$ find the value of $a$ .

asked Jan 22, 2019 by meena.clay6

1 answer

Mrs. Marina teaches 4 different math classes. The first class contains 32 students, the second class contains 22 students, the third class contains 24 students and the fourth class contains 30 students. What is the mean number of students per class ?

asked Jan 22, 2019 by meena.clay6

1 answer

The mean of b and c is 25 and the mean of a and d is 20. What is the mean of a,b, c and d ?

asked Jan 22, 2019 by meena.clay6

1 answer

Dave can paint $y$ square feet of walkway per minute. What area can Dave paint in 5 hours ?

asked Jan 21, 2019 by meena.clay6

1 answer

The value of $b$ varies directly with the cube of $a$ and square of $c$. If $b$=125 when $a$=5 and $c$=25, what will be the value of $b$ if $a=2$ and $c=4$

asked Jan 21, 2019 by meena.clay6

1 answer

If $m$ and $n$ are positive integers and $4^m=64^n$ then the ratio of $m:n$ is

asked Jan 21, 2019 by meena.clay6

1 answer

The regular rate of full body massage at a spa clinic is $\$50$ per session. The clinic currently offers a special package of $\$240$ for 6 sessions. What percentage does a customer taking up this offer save for 6 sessions ?

asked Jan 21, 2019 by meena.clay6

1 answer

Scientific estimates that the pacific plate one of Earth's tectonic plate, has moved about $1075\; kms$ in the past $10.4$ million years. What was the average speed of the pacific plate during the time period in centimeter per year?

asked Jan 21, 2019 by meena.clay6

1 answer

At a summer camp, 80 children take up sailing class , 25 children take pottery class, 90 children do not take either sailing or pottery classes. What is the total number of children in the camp ?

asked Jan 3, 2019 by meena.clay6

1 answer

There are 40 oranges and 10 peaches in a bin. If only oranges are to be removed from the bin so that the probability of randomly drawing an orange becomes $\large\frac{3}{5}$ how many oranges must be subtracted from the bin ?

asked Jan 3, 2019 by meena.clay6

1 answer

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