PT
Most popular questions and responses by PT
Math
Jar A has 2 red marbles, 4 green marbles, and 3 blue marbles. Jar B has 4 pink marbles, 6 purple marbles, and 2 white marbles. Marcy randomly choo ses 2 marbles from Jar A, then 2 marbles from Jar B, without replacement in each case. What is the
asked on February 2, 2019 
Math
A cylindrical can has an inner radius of 4 cm and an inner height of 2 cm. A flat, rigid square is entirely enclosed inside the can and the square’s four vertices all touch the interior surfaces or edges of the can. What is the number of square
asked on February 3, 2019 
Math
Tim and Rich are racing up a 25foot wall. Tim climbs at 8 inches per minute and Rich climbs at 10 inches per minute. If Tim has a 5 minute head start, by how many SECONDS does the winner beat the other?
asked on February 19, 2019 
Math
The volume of a rectangular prism is 60 cubic in and the lengths of its edges are all whole numbers. What is the number of inches in the largest possible sum of all of the edges of the prism?
asked on November 14, 2018 
Math
Steven has made 154 Field Goals in 177 attempts. How many Field Goals must he make in a row in order to bring his overall success rate to exactly 90 percent?
asked on November 26, 2018 
Math
If 1 is added to every prime number less than 100, how many more of the resulting sums will be divisible by 4 than by 3? (If more of the sums are divisible by 3 than by 4, your answer will be negative.)
asked on December 5, 2018 
Math
The four members of a team are comparing scores on the Individual Test. Amy scored 3 points less and Brad scored 6 points less than the average of the team members, while Cara scored 5 points more than the average. Don scored 28 points. What was the score
asked on January 10, 2019 
Math
A geometry teacher drew some quadrilaterals on the chalkboard. There were 5 trapezoids, 12 rectangles, 5 squares, and 8 rhombuses. What is the least number of figures the teacher could have drawn?
asked on May 5, 2019 
Math
When the digits of a positive integer are written in reverse to form a new positive integer with the same number of digits(e.g., 1234 4321), the new number is 90 less than the original. What is the smallest possible value of the original number?
asked on March 11, 2019 
Math
After playing the first 25% of his tennis matches this seasons, Colin won 20% of his matches. What percent of his remaining matches must he win to win 50% of his matches ?
asked on February 11, 2019 
Math
Ten apples are distributed among Amy, Ben, Corin, and Dora such that Amy gets at least two, and Corin and Dora get at least one each. If Ben gets at least as many apples as all the others put together, how many ways can the apples be distributed?
asked on December 4, 2018 
Ratios
In an animal shelter, the ratio of cats to dogs is five to two. How many more cats are there than dogs, if the total number of cats and dogs is eighty four?
asked on March 9, 2018 
Math
Tim has more pennies than nickels, more nickels than dimes, more dimes than quarters, and more quarters than halfdollars. Tim has at least 3 quarters and at least one of each other kind of coin listed. What is the smallest number of cents Tim could have?
asked on January 10, 2019 
Math
Colin had an average of 96% on his statistics tests going into the last test. He didn’t take the last test and his grade fell to 80%. Assuming each test is worth the same number of points, how many tests were there, including the test Colin didn’t
asked on February 11, 2019 
Math
How many counting numbers less than 100 have an EVEN remainder when divided by 5 and an ODD remainder when divided by 7?
asked on January 14, 2019 
Math
Karen has a total of 17 bills in standard U.S. currency, of at least 3 different denominations (values). She has no $2 bills and no bills worth $100 or more. What is the positive difference between the maximum and minimum number of dollars Karen could
asked on February 6, 2019 
Math
I have 75 rings (leg bands) to be distributed somehow among 20 pigeons. When all rings are distributed and attached, I will put the pigeons into pigeonholes labeled 0, 1, 2, 3, and so on, with each pigeon going into the pigeonhole labeled with the number
asked on January 14, 2019 
Math
A semicircle is inscribed in a rectangle with area 144 square centimeters. In square cm, what is the area of the semicircle?
asked on February 13, 2019 
Math
One farmer leaves for the market in a tractor towing his produce in a cart at an average rate of 10 m iles per hour. A second farmer leaves from the same farm at the same time, headed for the same market by the same road as the first farmer, on a donkey at
asked on February 3, 2019 
Math
Five dogs (Fido, Ruff, Lassie, Odie, and Snoopy) were playing in the park. Altogether, they had 5 identical Frisbees. In how many ways could the 5 Frisbees be distributed among the dogs when they leave the park to go home?
asked on February 13, 2019 
Math
Janet can mix a batch of cookie dough in 30 minutes. Miya can mix a batch of cookie dough in 45 minutes. Bella can’t cook, and slows down everybody he works with to halfspeed. How many minutes will it take the three of them working together to mix a
asked on February 13, 2019 
Math
The image of point A(2, 5) is point A’(1, 2) after a reflection over line k. The equation for line k is in the form y = mx + b. What is the value of m?
asked on January 22, 2019 
Math
Determine the smallest counting number that satisfies the following conditions: Divide 7 into this number and you get a remainder of 4. Divide 8 into this number and you get a remainder of 5. Divide 9 into this number and you get a remainder of 6.
asked on January 16, 2019 
Math
Simba weighs five pounds more than Sasha. If they both gain two pounds, Simba will weigh twice as much as Sasha. How many pounds does Sasha weigh now?
asked on October 28, 2018 
Probability
Grace has 2 yellow balloons and 3 red balloons. Her brother, Caleb, is going to pop two of the balloons at random. What is the probability that he pops one of the yellow balloons and one of the red balloons?
asked on March 5, 2018 
Probability
The first card Jon draws from a standard deck is a face card (jack, queen, or king). He keeps this card and draws a second one. If he draws at random, what is the probability that Jon now has a pair of kings? Answer as a reduced fraction.
asked on March 6, 2018 
Probability
Triscia had 12 jellybeans in a jar (orange ones, green ones, and purple ones). After she ate all the orange ones (but none of any other color), the probability of taking out a green jellybean by chance was twice as high as it was before she ate any
asked on March 5, 2018 
Math
For her birthday, Ruthie got 4 math books and some other books, all different. From these, she chooses 2 math books and one other book to take on vacation. There are 30 different sets of books Ruthie could choose. How many books in all did she get for her
asked on January 22, 2019 
Probability
Alice has 2 identical pairs of red shoes and 1 pair of white shoes, where a pair of shoes is one left and one right shoe of the same color.If she draws two shoes at random, what is the probability that she picks a pair? Give your answer as a reduced
asked on March 5, 2018 
Math
I am thinking of a counting number that is a multiple of 5, but not of 2 or of 3. It has either 2 digits or 3 digits, and no digit is greater than 5. How many numbers could I be thinking of?
asked on January 22, 2019 
Probability
Keisha and Kelly have an astronomy club devoted to observing the moon. If the moon is visible 28 out of 29 days and the girls can make it outside 14 days per 29 days, what is the probability they will go out on a night when the moon is not visible?
asked on March 5, 2018 
Math
The mean of the first n consecutive positive base7 numbers is 6. What is the base10 value of n?
asked on January 20, 2019 
Math
Rob used all the digits except 0 to write a 9digit counting number such that no two consecutive digits form a 2digit prime number. (That is, for the number abc,def,ghi, where letters stand for unique digits, none of the following 2digit numbers are
asked on January 16, 2019 
Probability
There are 6 methods of travel (walk,run,unicycle,bicycle,scooter,car). For three days, Max decides that he wants to randomly select his method of travel taking him to work. What is the probability that exactly one of the three days, Max walks to work?
asked on March 5, 2018 
Math
Let f(x) = 3x + 2 Find f(a) and f(2a). I'm confused, can someone help me?
asked on August 28, 2016 
Math
George has a 5 pint pitcher and a 3 pint pitcher that are both empty. Each move consists of either pouring water into a pitcher, out of a pitcher, or from one pitcher to the other. What is the least number of moves it would take to get 4 pints of water in
asked on January 16, 2019 
Probability
When rolling 5, 6sided dice, what is the probability that the 5 numbers appearing on the dice are the same?
asked on March 5, 2018 
Economics
I just don't understand why is the index expressed as 100 for the base year
asked on February 1, 2008

Math
They say it is 36Pi sq.cm
posted on February 13, 2019 
Math
I get 32 as answer, where as the given answer is 34.
posted on February 3, 2019 
Math
Thanks Ms Pi
posted on February 3, 2019 
Math
Thank you sir !!
posted on January 22, 2019 
Math
figured out 501
posted on January 16, 2019 
Math
figured it out 6 moves
posted on January 16, 2019 
Math
146+140+115+75+50 = 196cents
posted on January 10, 2019 
Math
Thanks again Scott.
posted on December 5, 2018 
Math
Thanks R_scott
posted on December 5, 2018 
Math
Thanks Steve!
posted on November 27, 2018 
Math
Thanks Damon, they say it is 248 inches total, not sure how they arrive.
posted on November 14, 2018 
Math
Thanks R_scott
posted on October 29, 2018 
Ratios
Thanks
posted on March 9, 2018 
Probability
Thanks Steve!!
posted on March 6, 2018 
Probability
Thanks Reiny!
posted on March 5, 2018 
Probability
Thanks again Scott!
posted on March 5, 2018 
Probability
Thanks a lot Scott!!
posted on March 5, 2018 
Math
A bus set off a busstop and travelled towards the factory at a constant speed. 20 minutes later, a van set off the same busstop and travelled towards the factory along the same route at a constant speed. The van caught up with the bus 40 minutes after
posted on July 24, 2016