1.

Express the square of 11 in terms of sum of odd numbers.(a) 1+3+5+7+9+11+13+15+17+19+21(b) 1+2+3+5+7+9+11+13+15+17+19(c) 1+3+5+7+9+11+13+15+17+21+23(d) 1+2+3+4+5+6+7+8+9+10+11+12I had been asked this question during an online interview.I need to ask this question from Finding the Square of a Number topic in chapter Squares and Square Roots of Mathematics – Class 8

Answer»

Right CHOICE is (a) 1+3+5+7+9+11+13+15+17+19+21

Explanation: The correct OPTION is the one with the FIRST 11 odd numbers as the sum of first N odd numbers gives n^2. Hence the correct ANSWER is the one with the first 11 odd number.



Discussion

No Comment Found

Related InterviewSolutions