In the first week of the year, Nancy saved 1.Ineachofthenext51weeks,shesaved1 more than she had saved in the previous week. What was the total amount that Nancy saved during the 52 weeks?
A
1326$
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B
1352$
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C
1378$
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D
2652$
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E
2756$
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Solution
The correct option is C1378$
Let's first set up the pattern of Nancy's savings. The first week she saved 1,thesecondweekshesaved2, the third week she saved 3,andsoforth.Therefore,thetotalamountofmoneyshewillhavesavedattheendof52weekswillbe:1 + 2+3 + 4+…+52.
Sum Of First n Natural Numbers = n(n+1)2.
= 52(52+1)2
= 1378.
Hence, the total amount that Nancy saved during the 52 weeks is $1378.