A student's average test score on 4 tests is 78. What must be the student's score on the 5 ^ (th) * testf the student's average score on the 5 tests to be 80?
How many minutes does it take john to type y words if he types at the rate of x words per minute?
If n is an integer, which of the following must be even?
Kelly and Chris packed several boxes with books. If Chris packed 60 percent of the total number of boxes, what was the ratio of the number of boxes Kelly packed to the number of boxes Chris packed?
The average (arithmetic mena) of 10, 30, and 50 is 5 more than the average of 20, 40, and x. Then x = ?
If 1 kilometer is approximately 0.6 mile, which of the following best approximates the number of kilometers in 2 miles?
At least 23 of the 40 members of a committee must 2/3 vote in favour of a resolution for it to pass. What is the greatest number of members who can vote against the resolution and still have it pass?
Leona bought a 1-year, $10,000 certificate of deposit that pay interest at an annual rate of 8 percent compounded semiannually. What is the total amount of interest paid on this certificate at maturity?
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
If n is an integer greater than 6, which of the following must be divisible by 3?
If Jake loses 8 pounds, he will weight twice as much as his sister. Together they now weight 278 pounds. What is Jake's present weight, in pounds?
For the positive numbers, n, n + 1, n + 2, n + 4 and n+8, the mean is how much greater than the median?
Mary's income is 60 percent more than Tim's income, and Tim's income is 40 percent less than Juan's income. What percent of Juan's income is Mary's income?
David has d books, which is times as many as Jeff and 12 as many as Paula. How many books do the three of them have altogether, in terms of d?
The River town little League is divided into d divisions. Each division has t teams, and each team has p players. How many players are there in the entire league?
What is the value of n if 2(n + 1) = 32 ?
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Jak's average test score after 2 tests is 78. What average score must Jake score on the 3rd ,4th and 5th tests to bring his average up to exactly 87?
If m2 = 17 then what is the value of (m + 1) (m - 1) ?
If p pencils cost c cents, how many pencils can be bought for d dollars?
An international convention has a total of d delegates from c countries. If each country is reprented by the same number of delegates, how many delegates does each country have?
Bob and Jack share an apartment. If each month Bob pays a dollars and Jack pays b dollars, what percent of the total cost does Bob pay?
If f(x) = 2x2 + 1 which the following is a solution of the equation f(3x) =3 ?
The average of 7 consecutive numbers is 33. The largest of those numbers is:
If 5c + 3 = 3c + 5 what is the value of c?
Find out the odd letter E, A, K, U and O.
A and B are children of C. C is the father of A but B is not daughter of C. What is B to C?
The missing number in the bracket 21(9) 12, 24(?) 9 is-
"A is B's brother. B is C's brother". If these relationships are true, then which of the following must be true?
If CAT stands for 3120 the DOG stands for _____?
Anis is taller than Ripon, Ripon is taller than Jamal, Mithu is taller than Ripon, but shorter than Anis. Who is the shortest?
Which one of the following words best fits to hours, minutes and seconds.
If it takes 5 minutes to boil an egg, how much time it will take to boil 10 eggs?
Hossain Chowdhury said 15 days ago, "My birthday is day after tomorrow". If today is 30th, birthday of Hossain Chowdhury-
If 2nd day of the month is Monday, then what is the 18th day of the month?
What will be the age of a person on the 31st January of 1995 whose date of birth is 1st January of 1994?
Maruf is placed at the 7th position from both sides. How many are there in the row?
Hossain started his journey from home (east side) to university. He reached a junction after sometimes. Now, a mosque is there at the end of road at his right. A hospital is at front side, in which direction is his university?
In the figure below, AD = 4, CD = 9 and DE = 3 AE, What is the area of triangle AEC?
A rope 40 feet long is cut into two pieces. If one piece is 18 feet longer than the other, what is the length, in feet, of the shorter piece?
If f(x) = x2 - 2x what is the value of f(4) ?
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