Question

A large multiplex movie house has many theaters. The largest theater has 32 rows. There are 11 seats in the first row. Each row has two seats more than the previous row. How many total seats are there in this​ theater?

Answer 1

1,419

Step-by-step explanation:

11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41+43+45+47+49+51+53+55+57+59+61+63+65+67+69+71+73+75=1,419

Row 1: 11 seats

Row 2: 13 seats

Row 3: 15 seats

Row 4: 17 seats

Row 5: 19 seats

Row 6: 21 seats

Row 7: 23 seats

Row 6: 25 seats

Row 8: 27 seats

Row 9: 29 seats

Row 10: 31 seats

Row 11: 33 seats

Row 12: 35 seats

Row 13: 37 seats

Row 14: 39 seats

Row 15: 41 seats

Row 16: 43 seats

Row 17: 45 seats

Row 18: 47 seats

Row 19: 49 seats

Row 20: 51 seats

Row 21: 53 seats

Row 22: 55 seats

Row 23: 57 seats

Row 24: 59 seats

Row 25: 61 seats

Row 26: 63 seats

Row 27: 65 seats

Row 28: 67 seats

Row 29: 69 seats

Row 30: 71 seats

Row 31: 73 seats

Row 32: 75 seats