CBSE 10th MODEL EXAM 2009-2010
1. State Euclid division lemma.
2. Prove that {root 5 } is an irrational number.
3. Prove that cube of any +ve integer is 9 m, 9 m+1 or 9 m+8 where q is some integer.
4. find the nth term of the A.P. 2 ,5 , 8 ……………, find its 54th term
5. What are an A.P. and a term?
6. Find the sum of first n odd natural numbers.
7. Find sum of first 22 terms of an A.P. in which d=22 and a22 =149.
8. A man is employed to count Rs 10710. He counts @ Rs 180 /minute for half an hour. After it he counts @Rs 3 less than the preceding minute. What time he had taken to count the entire money?
9. Thale's theorem?
10. If 2 triangles ABC and PQR are similar then prove that ratios of their areas are in ratio of squares of their corresponding sides?
11. What is Pythagoras theorem?
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