Workout Click here - Corbettmaths · Limits of Accuracy Video 183 on Question 1: Declan is...

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Limits of Accuracy Video 183 on www.corbettmaths.com Question 1: Write down the lower bound and the upper bound for each of the following: (a) 4g measured to the nearest gram (b) 12cm correct to the nearest centimetre (c) 75 miles given to the nearest mile (d) 50kg measured to the nearest 10kg (e) 130 seconds given the nearest 10 seconds (f) 225km given to the nearest 5km (g) 400ml given to the nearest 100ml (h) 1900 hours correct to the nearest 10 hours (i) 2700mm measured to the nearest 100mm (j) 5000km correct to the nearest 100km (k) 28000kg measured to the nearest 10kg (l) 30000km/h given to the nearest 10000km/h Question 2: Write down the lower bound and the upper bound for each of the following: (a) 80 people given to the nearest 10 people (b) £10 given to the nearest pound (c) 500 chairs correct to the nearest 100 chairs (d) 14000 Mlights given to the nearest 1000 Mlights (e) £29000 given to the nearest £100 Examples Workout © CORBETTMATHS 2017 Click here iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Transcript of Workout Click here - Corbettmaths · Limits of Accuracy Video 183 on Question 1: Declan is...

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    !LimitsofAccuracy

    Video183onwww.corbettmaths.com

    Question1: Writedownthelowerboundandtheupperboundforeachofthefollowing:

    (a) 4gmeasuredtothenearestgram(b) 12cmcorrecttothenearestcentimetre

    (c) 75milesgiventothenearestmile

    (d)50kgmeasuredtothenearest10kg

    (e) 130secondsgiventhenearest10seconds

    (f) 225kmgiventothenearest5km

    (g)400mlgiventothenearest100ml

    (h) 1900hourscorrecttothenearest10hours

    (i) 2700mmmeasuredtothenearest100mm

    (j) 5000kmcorrecttothenearest100km

    (k)28000kgmeasuredtothenearest10kg

    (l) 30000km/hgiventothenearest10000km/h

    Question2: Writedownthelowerboundandtheupperboundforeachofthefollowing:

    (a) 80peoplegiventothenearest10people

    (b)£10giventothenearestpound

    (c) 500chairscorrecttothenearest100chairs

    (d) 14000Mlightsgiventothenearest1000Mlights

    (e)£29000giventothenearest£100

    Examples

    Workout

    © CORBETTMATHS 2017

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    https://corbettmaths.com/2013/05/28/lower-and-upper-bounds/http://www.corbettmaths.comhttp://www.corbettmaths.comhttps://corbettmaths.com/2013/05/28/lower-and-upper-bounds/

  • � �

    !LimitsofAccuracy

    Video183onwww.corbettmaths.com

    Question3: Writedownthelowerboundandtheupperboundforeachofthefollowing:

    (a) 3.8cmmeasuredtothenearest0.1centimetre

    (b)15.2secondstothenearesttenthofasecond(c) 6.4groundedtoonedecimalplace

    (d) 515.9kgcorrecttoonedecimalplace

    (e) 0.07secondsroundedtotwodecimalplaces

    (f) 5.26mmmeasuredtothenearest0.01mm

    (g) 24.091kgcorrecttothreedecimalplaces

    (h) 8cmmeasuredtothenearest0.1cm

    Question4: Writedownthelowerboundandtheupperboundforeachofthefollowing:

    (a) 4milescorrectto1signiMicantMigure(b) 30cmroundedto1signiMicantMigure

    (c) 900mlgivento1signiMicantMigure

    (d) 0.2mgivento1signiMicantMigure

    (e) 14hoursgivento2signiMicantMigures

    (f) 280gcorrectto2signiMicantMigures

    (g) 42000kmroundedto2signiMicantMigures

    (h) 748gallonscorrectto3signiMicantMigures

    (i) 400mroundedto2signiMicantMigures

    (j) 8000kggivento2signiMicantMigures

    (k) 290000km/hgivento4signiMicantMigures

    (l) 0.024correctto2signiMicantMigures

    (m) 15.1kilometresroundedto3signiMicantMigures

    (n) 100gcorrectto1signiMicantMigure© CORBETTMATHS 2017

    http://www.corbettmaths.comhttp://www.corbettmaths.com

  • � �

    !LimitsofAccuracy

    Video183onwww.corbettmaths.com

    Question1: Declanisconsideringbuyingasofathatis207cmlong. ThespacethatDeclanwantstothesofais210cmtothenearest10cm. ShouldDeclanbuythesofa?

    Question2: MrJoneswantstobuyanotebookforeverystudentinyear11. Heknowsthereare300studentsinyear11tothenearest100. Whatisthegreatestpossiblenumberofnotebooksthathewouldhavetobuy?

    Question3: ThelengthofaMieldis400mtothenearest10m. Rebeccasaysthelowerboundis350mandtheupperboundis450m. Isshecorrect?

    Question4: Thetableshowsthepricesofpostinglargeletters. Gerardwantstoposttwolargeletters:

    -alargeletterweighing230gtothenearest10grams -alargeletterweighing500gtothenearest10grams

    (a)Whatisthesmallestpossiblepriceforpostingbothlargeletters?

    (b)Whatisthegreatestpossiblepriceforpostingbothlargeletters?

    Question5:Belowisaquestionthatwaspostedonlineandtheresults. Explainwhichansweryouagreewith.

    Apply

    Answers© CORBETTMATHS 2017

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    https://corbettmaths.com/2017/06/28/limits-of-accuracy-1-answers/https://corbettmaths.com/2017/06/28/limits-of-accuracy-1-answers/http://www.corbettmaths.comhttp://www.corbettmaths.com