- A90
- B200
- C100
- D110
Step-by-Step Solution
The total after rows is (sum of first odd numbers). After 10 rows: .
Answer: C) 100
Arjun arranges marbles in rows: row 1 has 1 marble, row 2 has 3, row 3 has 5, row 4 has 7.
The total marbles after each row are 1, 4, 9, 16.
How many marbles in total will he have after completing 10 rows?
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