Subsequent 3056

There are 48 pupils in the third row and 17 more in each subsequent row than in the previous one. Find how many pupils there are in the first and tenth rows.

Correct answer:

a1 =  14
a10 =  0

Step-by-step explanation:

d=17 a3=48 a3 = a1+2d a1=a32 d=482 17=14
a10=a1+9 d=14+9 17=167=0

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