CBSE Guess > Papers > Question Papers > Class X > 2009 > Mathematics > Mathematics

Q. 24. Find the roots of the equation .

Sol .

Q. 25. Find the sum of all three digit numbers which are divisible by 11. 3

Sol. To find : 110 + 121 + 132 + … + 990
1st term, a = 110

Mathematics 2009 Question Papers Class X
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