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Computers and TechnologyComputers and Technology
29 March, 17:57

Each level of a smartphone app adds more gems for you to match. On level one, there were 13 gems. On level twelve, there were 123 gems. When you complete all twelve levels, how many total gems will you have matched? A. 605 B. 660 C. 748 D. 816

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  1. 29 March, 20:35
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    Level : 1,2,3,4,5,6,7,8,9,10,11,12

    Gems : 13 to 123

    We have to increase from 13 to 123 over a span of 11 levels.

    That's an increase of 110 over 11 levels.

    110 / 11 = 10

    So we go up 10 gems each level Level : 1,2,3,4,5,6,7,8,9,10,11,12

    Gems : 13 23 33 43 53 63 73 83 93 103 113 123
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Home » Computers and Technology » Each level of a smartphone app adds more gems for you to match. On level one, there were 13 gems. On level twelve, there were 123 gems. When you complete all twelve levels, how many total gems will you have matched? A. 605 B. 660 C. 748 D. 816
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