Hardest Math Question on the New Digital SAT | SAT Math #math #maths #shorts #percents

[Brotatochip]

During the actual sat, im sure my brain would’ve skipped the first step to subtract 30 from 210 and got 700%

[davidzevada]

Dude if that’s the hardest SAT math question than the sky is green

[preetambyahatti]

this can't be the hardest- heck this is easier

[RobotComments]

210 is 7 times more than 30.
Any time something is and integer “times more” it’s just -1 and then multiply by 100 therefore 600%

[benshiotsu]

There's no way this is even close to the hardest. Even without all the fancy stuff, you can just intuitively work things out.

[aaronadams]

He called it the "hardest" maths problem to make average people feel smart. I appreciate that

[Comm.]

Me : this is a 6th grade question easy
Also me : somehow gets it wrong💀

[killdoh]

This is a two-step, 5 second question

[stevennomenyo]

1. Identify the old values and new values in the video the new value is 210 and old value is 30.
2. Subtract them. 210-30=180.
3. Divide the difference by the old value. 180/30=6, then multiply by 100.

The number you get after multiplying by 100 is your percentage.

[failedorgan]

alternatively, in the uk we are always taught to set 30 as 100%. 210 is 30×7 so 210 is 700%. this makes 210 600% greater than 30, and the hardest question on the digital SAT becomes a simple 2-3 step method

[Geeking_Out_On_STEM]

Thank you. As a tutor it is so interesting how the test is. Thank you for this advise. I like posting questions to get my students ready for the exam.

[Mathochistic]

Percent change formula = difference/original =
(210-30)/30 = 180/30 = 6. Multiply by 100 to get it into percent form, and that gives us 600%

[wardenGD]

just divide 30 by 210, multiply by 100,
and subtract 100 from the answer (for the original 30 that we are comparing with)

[Lucas_Ribeiro__]

I'm brazilian, and here we use to solve these questions using "regra de 3" (rule 3), basically

30 = 100%
210 = x

210.100 = 21000
21000/30 = 700
700-100 = 600

[resident.fromohio]

Theres the easiest way to do it. Since 210 is 7 times greater than 30, you substract "one" 30 from the percentage, and because 30 is 100% of 30, you get 600%. I have looked at some past papers, and trust me, this aint the hardest question BY A MILE

[IFStravinsky]

basically, you take the difference (180), divide by the number you start with (in this case, 30), and multiply by 100.

[multi_fan]

personally I just subtract 30 to 210 and divide the difference by 30 which I then multiply to 100 to get the percentage which is basically this video but i didn't write the equation-

[CosmoBob.]

Or just divide 210 by 30 which equals 7, and subtract 1 to get 6 which is 600 percent. So much more simple.

[_Wheels_]

210 is 600% greater than 30. Makes a whole lot of sense

[Dazeye]

Instead of subtracting 30 fron 210 frist I divide 210 by 30 and since 30=100 i get (7)100%=700%
700%-100%=600% p=600%