this HARD math question

<p>I usually get around -0, maybe -1 in math section b/c of mistake but this question, I have no idea why I got it wrong.</p>

<p>Set S consists of the positive multiples of 6 that are less than 50, and set T consists of the positive multiples of 8 that are less than 50. How many numbers do sets S and T have in common?</p>

<p>I thought it was one (48) but the answer is two.</p>

<p>24 is also one.</p>

<p>S= 6,12,18,24,30,36,42,48.
T= 8,16,24,32,40,48.
I always make such silly mistakes too. Always get hard ones right and miss easy ones. :mad:</p>

<p>Thank the SAT for testing how well you can notice similar numbers, which has absolutely no mathematical purpose… Seems that 90% of SAT questions are that way and are referred to by the test as reasoning.</p>

<p>Take least common multiple (LCM) of 6 and 8 which is 24. Thus, total number of multiples of 24 under 50 is the answer. Multiples of 24 under 50 are 24 and 48. Thus answer is two</p>

<p>lol these simple questions will get you if your not careful…preventing you from attaining that 800.</p>

<p>Yeah, I decided to take the whole test really slowly to prevent careless mistakes. Unfortunately, I had to omit 1. In the end I got 770 for 1 omit and 1 wrong.</p>