Search found 99 matches
Three machines, K, M, and P, working simultaneously
Three machines, K, M, and P, working simultaneously and independently at their respective constant rates, can complete a certain task in 24 minutes. How long does it take Machine K, working alone at its constant rate, to complete the task? (1) Machines M and P, working simultaneously and independent...
- by factor26
Wed Dec 07, 2011 5:58 pm- Forum: Data Sufficiency
- Topic: Three machines, K, M, and P, working simultaneously
- Replies: 7
- Views: 6820
If the ratio of the number of teachers to the number of.....
If the ratio of the number of teachers to the number of students is the same in School District M and School District P, what is the ratio of the number of students in School District M to the number of students in School District P ? (1) There are 10,000 more students in School District M than ther...
- by factor26
Wed Dec 07, 2011 5:56 pm- Forum: Data Sufficiency
- Topic: If the ratio of the number of teachers to the number of.....
- Replies: 4
- Views: 2625
- by factor26
Sat Dec 03, 2011 3:49 pm- Forum: Data Sufficiency
- Topic: If r is represented ....
- Replies: 7
- Views: 2437
- by factor26
Sat Dec 03, 2011 2:29 pm- Forum: Data Sufficiency
- Topic: The hypotenuse of a right triangle is 10 cm. What .....
- Replies: 4
- Views: 4462
The hypotenuse of a right triangle is 10 cm. What .....
The hypotenuse of a right triangle is 10 cm. What is the perimeter, in centimeters, of the triangle? (1) The area of the triangle is 25 square centimetres. (2) The 2 legs of the triangle are of equal length OG ANSWER IS D BUT MY ANSWER WAS B .... CAN SOMEONE PLEASE EXPLAIN HOW STATEMENT 1 IS SUFFICI...
- by factor26
Sat Dec 03, 2011 10:15 am- Forum: Data Sufficiency
- Topic: The hypotenuse of a right triangle is 10 cm. What .....
- Replies: 4
- Views: 4462
ahhh i see now!! why do i keep making these silly mistakes!? hopefully i can get these mistakes out now so test day i'll beat the gmat! i'm going to take a shot at responding to amit's question ... please correct me if my reasoning is flawed. -- statement 2 states that our target profit of $4mm has ...
- by factor26
Tue Nov 29, 2011 5:49 pm- Forum: Data Sufficiency
- Topic: The profit from the sale ...
- Replies: 5
- Views: 2263
oh wow ... i cant believe i didnt realize we get a y value in terms of x in statement 1 
... i think i was too focused on trying to disprove and totally missed the obvious!! thanks guys!!
- by factor26
Tue Nov 29, 2011 5:14 pm- Forum: Data Sufficiency
- Topic: In PQR, if PQ = x, QR = x + 2, and PR = y, which of the ..
- Replies: 4
- Views: 4125
If r is represented ....
If r is represented by the decimal 0.t5 what is the digit t ?
1) r < 1/3
2) r < 1/10
i researched this question on the btg site but it doesnt look like a lot of people answered it ... PLEASE HELP
OG answer is b
- by factor26
Mon Nov 28, 2011 2:24 pm- Forum: Data Sufficiency
- Topic: If r is represented ....
- Replies: 7
- Views: 2437
The profit from the sale ...
The profit from the sale of a certain appliance increases, though not proportionally, with the number of units sold. Did the profit exceed $4 million on sales of 380,000 units ? (1) The profit exceeded $2 million on sales of 200,000 units. (2) The profit exceeded $5 million on sales of 350,000 units...
- by factor26
Mon Nov 28, 2011 1:10 pm- Forum: Data Sufficiency
- Topic: The profit from the sale ...
- Replies: 5
- Views: 2263
In PQR, if PQ = x, QR = x + 2, and PR = y, which of the ..
In TRIANGLE PQR, if PQ = x, QR = x + 2, and PR = y, which of the three angles of TRIANGLE PQR has the greatest degree measure? (1) y = x + 3 (2) x = 2 Og answer is a . i don't understand how this is as there are many values to be placed in for the value of x and y. i know the third side rule comes i...
- by factor26
Mon Nov 28, 2011 12:59 pm- Forum: Data Sufficiency
- Topic: In PQR, if PQ = x, QR = x + 2, and PR = y, which of the ..
- Replies: 4
- Views: 4125
For any positive integer n, the sum of
For any positive integer n, the sum of the first n positive integers equals
n(n+1)/ 2
What is the sum
of all the even integers between 99 and 301 ?
(A) 10,100
(B) 20,200
(C) 22,650
(D) 40,200
(E) 45,150
OG ANSWER IS B PLEASE HELP!
- by factor26
Sat Nov 19, 2011 3:32 pm- Forum: Problem Solving
- Topic: For any positive integer n, the sum of
- Replies: 7
- Views: 4060
- by factor26
Sat Nov 12, 2011 5:55 pm- Forum: Problem Solving
- Topic: If [x] is the greatest integer less .....
- Replies: 3
- Views: 1477
IF T = 1 / (2^9 * 5^3) IS EXPRESSED
IF T = 1 / (2^9 * 5^3) IS EXPRESSED AS A TERMINATING DECIMAL, HOW MANY ZEROS WILL (T) HAVE BETWEEN THE DECIMAL POINT AND THE FIRST NONZERO DIGIT TO THE RIGHT OF THE DECIMAL POINT? A - THREE B - FOUR C - FIVE D - SIX E - NINE OG ANSWER IS B ... I SOLVED THE QUESTION GOING THROUGH THE MATH THE LONG WA...
- by factor26
Sat Nov 12, 2011 4:35 pm- Forum: Problem Solving
- Topic: IF T = 1 / (2^9 * 5^3) IS EXPRESSED
- Replies: 7
- Views: 3775
If [x] is the greatest integer less .....
If [x] is the greatest integer less than or equal to x, what is the value of [-1.6]+[3.4]+[2.7]?
A. 3
B. 4
C. 5
D. 6
E. 7
OG ANSWER IS A I'M HAVING DIFFICULTY UNDERSTANDING WHAT THIS QUESTION IS ASKING ... CAN ANYONE HELP ME HERE? THANKS!
- by factor26
Mon Nov 07, 2011 6:21 pm- Forum: Problem Solving
- Topic: If [x] is the greatest integer less .....
- Replies: 3
- Views: 1477
I misunderstood the question that was asked. For some reason I though they were looking for the probability of picking either a dime or a penny consectively .... Prob of picking two dimes d x d + prob of two pennies in a row p x p whoops!!! Thanks guys!!!
- by factor26
Mon Oct 31, 2011 1:53 pm- Forum: Problem Solving
- Topic: In United States currency, a nickel ....
- Replies: 3
- Views: 1320