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There are candies on ten benches. There are three candies on the first bench. There are two more candies in each one than in the previous one. Find how many candies there are.

Final Answer:

x =  120

Step-by-step explanation:

x=3 10+2+4+6+8+10+12+14+16+18=120   Verifying Solution:  n=10 a1=3 d=2  a10=a1+9 d=3+9 2=21 s=2a1+a10 n=23+21 10=120



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