If 60! is written out as an integer, with how many consecutive 0’s will that integer end?

A. 6
B. 12
C. 14
D. 42
E. 56

I calculated this in excel and the answer came out to 67 0's at the end. what am I missing?

I don't know what the explanation says, but you are asking when to use permutations vs. combinations. In this example, I think of each of the medals having the ability to choose a team. Teams: A B C D E F G H I J Medals: Gold, Silver, Bronze Gold medal: 10 choices: A B C D E F G H I J. Let’s say A w...

There is definitely some information missing from the question as posted. It is impossible for AC to be a bisector of the triangle because ABC is a 3-4-5 right triangle. if AC was a bisector, ABC would be an isosceles triangle. do you mind reposting the question in its entirety?

the questions asks: How much does the jacket cost ? In other words, you need a dollar amount for Jim, Tom or both. Statement A only gives you a percentage. Tom makes 20% less per hour than Jim does. Try plugging in some numbers: if Jim makes $5/hr, then Tom makes $4/hr using your equation 4x=5y, we ...

1. rewrite the question as follows: If n is an integer and n = 2*3*5*7*11*13/7*11*k then which of the following could be the value of k? In other words, which of the answer choices divides 2*3*5*13 with no remainder? only 26 (2*13) and the result is 3*5 or 15. 2. They all received equal marks. Try p...

Take a look at Ron's diagram again. 27 is the number of houses with pools that have patios and no patios. Thus, these are all the houses with swimming pools. 48 is the number of houses with no swimming pools. 27 is the number of houses with no patios. 48 is the number of houses with patios. We don't...

OK. You can always revert to the Pythagorean Theorem when stuck.

Label segment CD x and Segment AD y.

Now set up two equations:
x^2 + 4^2 = y^2
5^2 + y^2 = (3+x)^2

the two equations simplify to
x^2 - y^2 = -16
-x^2 + y^2 = 6x-16

add the two equations:
0 = 6x - 32
x = 16/3

Because this is a problem solving question, and the stem states, "for all positive numbers a and b," I would just pick numbers. a=1 b=3 A. f(1+3) = f(1)+f(3) 4^2 = 1^2 + 3^2 16=2+9 => NO B. (4+1) = (1+1) + (3+1) 5=2+4 => NO C. √4 = √1 + √3 2=1+√3 => NO D. 2/4 = 2/1 + 2/3 1...

hey Susan, you've basically done the heavy lifting and now you just need to put the puzzle pieces together. Statement 1 tells us that: (3k+2)-2 = an integer. (3k)/5. Thus, k must be a multiple of 5 5 Statement 2 tells us that: 5p+3 = an integer or (5/3)p +1 is an integer. Thus, p must be a multiple ...

This question can be rephrased as: is 5-x > 0? Or, more specifically, is x < 5 because the left side of the equation can never be negative (the square root of a number cannot be negative in GMAT math) (1) -x*|x|>0 The absolute value must be positive so we have -x*(a positive number)>0 Th...

Actually, everything is correct until the last part.

We know that 2h=3m, and we want to solve for h/m

h/m = 3/2. Thus, the ratio is 3:2

To set up the problem, the key takeaway is that 15ft is the entire length of the oval around the two circular wheels. Step 1: bisect each of the circles with a vertical diameter running through the center. The half circles at the ends are the portion of the belt wrapped around the circular wheels. S...

Thanks. I realized that excel rounds the calculation

I think you'll chuckle after reading this one.

It's true, the range will always be 8, but the question is asking for the range of scores.

Only B gives us that [2,10]

I don't think that shortcut works. try it with 30!. the answer is 7 and your method results in an answer of six.