@jbdahl1 The actual question was (at least as Sal said it) "if a positive integer n is divisible by both 5 and 7 then n MUST be divisible by which of the following".. then to reiterate. the number 35 is a possible number which satisfies the term 'n' ... However, 35 is NOT divisible by 70 (thus - it does not satisfy the original statement)
well Sal is human, though the answer for the question 41 was wrong I got the process to solve it, that was awesome anyway, I was lost in that, we just need to be careful with the GMAT traps :D
The answer to question 41 is 2/5 not 5/2. The second to last step is 2=5t. Thus t is 2/5. Also plugging the value back in the question makes sense with 2/5. Other than that, this is some really excellent work you are doing. Keep it up.
lol I think everyone caught the last obvious mistake but anywho...what book are you guys following????
Vinnys2003 1 year ago
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1 minute ago
On prob 38, wouldn't it be easier to solve for k and then plug k into the original equation?
BTW, thank you so very much for all these amazing vids. Your chemistry ones helped so much when I was taking that class!
wacastervids 1 year ago
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wacastervids 1 year ago
On question 37 70 is divisible by either 5 or 7; or am I misunderstanding the question in that when the integer is divided by 5 the result must be 7
jbdahl1 1 year ago
@jbdahl1 The actual question was (at least as Sal said it) "if a positive integer n is divisible by both 5 and 7 then n MUST be divisible by which of the following".. then to reiterate. the number 35 is a possible number which satisfies the term 'n' ... However, 35 is NOT divisible by 70 (thus - it does not satisfy the original statement)
TheFlamingRedExtreme 1 year ago
great work man
junaid039 2 years ago
well Sal is human, though the answer for the question 41 was wrong I got the process to solve it, that was awesome anyway, I was lost in that, we just need to be careful with the GMAT traps :D
alecesar7 2 years ago
You make math so much fun. The problems seem so much easier after you explain the simple logic behind it.
May God bless you for your kindness and excellent work.
Jaiyana786 2 years ago
The answer to question 41 is 2/5 not 5/2. The second to last step is 2=5t. Thus t is 2/5. Also plugging the value back in the question makes sense with 2/5. Other than that, this is some really excellent work you are doing. Keep it up.
henryuzo 2 years ago 7
On the end of question 41 you got 5/2 instead of 2/5th on your last step. I think the answer should be choice D which is 2/5th.
enderad 3 years ago 7