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Numerical test question

  • 29-01-2011 05:53PM
    #1
    done4now
    Registered Users, Registered Users 2 Posts: 106 ✭✭


    I had a screen shot of this but it got deleted while opening Chrome (dont ask)

    But this is what I can remember of the question:
    If someone drives 950kms using the average fuel consumption and 450kms at 1.4% higher then the average fuel consumption what is the full cost?

    Price of fuel 0.96 and average fuel consumption is 15.

    What I did was
    950/15=63.33
    15X0.014=.21+15=15.21
    450/15.21=29.59
    29.59+63.33=92.92
    92.92X.0.96=89.199

    But I know this isnt one of the answers its 87, 103 or 106


Comments

  • #2
    bnt
    Registered Users, Registered Users 2 Posts: 13,116 ✭✭✭✭bnt


    Is the fuel consumption is given in km/litre? If I assume that, then a 1.4% increase in fuel consumption will give 1.4% fewer km/litre, so it would be 15-0.21=14.79 km/l. But that gives me an answer of €90, which isn't in the list either, so either there's a mistake in the question or there's some information missing.

    You are the type of what the age is searching for, and what it is afraid it has found. I am so glad that you have never done anything, never carved a statue, or painted a picture, or produced anything outside of yourself! Life has been your art. You have set yourself to music. Your days are your sonnets.

    ―Oscar Wilde predicting Social Media, in The Picture of Dorian Gray



  • #3
    done4now
    Registered Users, Registered Users 2 Posts: 106 ✭✭done4now


    I have another one, its really shocking how much I have forgotten about simple maths over the last few years as it was something I could do easily.

    If there is 726 students in a call and the ratio is 112:100 (boys:girls) how many boy are in the class?

    Using if there is 34 staff and for every 17 female students there is one female teacher how many female teachers are there?


  • #4
    bnt
    Registered Users, Registered Users 2 Posts: 13,116 ✭✭✭✭bnt


    About the first part: the total is 112+100=212, so the boys represent 112/212 =0.528 of the total. Then you apply that ratio to the total. You can work out the answers, but it appears that there's a hermaphrodite in that class. :cool:

    I can't tell what's going of in the second part of the question - is that how exactly it appeared on the paper?

    You are the type of what the age is searching for, and what it is afraid it has found. I am so glad that you have never done anything, never carved a statue, or painted a picture, or produced anything outside of yourself! Life has been your art. You have set yourself to music. Your days are your sonnets.

    ―Oscar Wilde predicting Social Media, in The Picture of Dorian Gray



  • #5
    Yakuza
    Registered Users, Registered Users 2 Posts: 5,141 ✭✭✭Yakuza


    bnt wrote: »
    Is the fuel consumption is given in km/litre? If I assume that, then a 1.4% increase in fuel consumption will give 1.4% fewer km/litre, so it would be 15-0.21=14.79 km/l. But that gives me an answer of €90, which isn't in the list either, so either there's a mistake in the question or there's some information missing.

    Aye, there must be something missing from the problem, or it hasn't been transcribed into the post correctly. OP, can you repost the original screenshot?


  • #6
    done4now
    Registered Users, Registered Users 2 Posts: 106 ✭✭done4now


    Na I lost the screen shot when I tried to crop it while opening chrome at the same time.

    It doesnt matter now as I was just doing practice test for numerical test as part of a job application which I passed.


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