1. The cards bearing letters of word “MATHEMATICS” are placed in a bag. Find the probability of getting: (a) any vowel. (b) any consonant. (c) the letter ‘m’. 2. 8 added to twice a number gives 40. Find the number.
I answered this question on another site and they told me I was wrong on part 2. Surely 2x + 8 = 40 is the correct equation to work this out??

Question

Vocaloid · Answer

the equation looks fine to me

what did you get as the solution? perhaps you may have made an arithmetic error

celticcat · Answer

x = 16.

Vocaloid · Answer

strange. that's the solution. perhaps they wanted 8 + 2x = 40 as the equation?

Vocaloid · Answer

alternatively, there could be an error in their answer key.

celticcat · Answer

Yes They said the answer was 24.

celticcat · Answer

I was doubting myself because they were so adamant!!!

celticcat · Answer

Thanks for your input.

celticcat · Answer

They wanted a numeric solution.