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TNPSC Group 4
🎯 TNEA
School
/
Math Olympiad Basics
0
0
0/15 done
📖 Practice
⏱ Quiz
Question 1
of 15
0 answered
Q1
easy
The sum of the first n odd numbers equals n². What is 1+3+5+7+9+11+13+15+17+19? (10 terms)
A
90
B
100
C
110
D
120
Select an answer
