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2. The sum of the first hundred even natural numbers divisible by 5 is
A. 55005
B. 55000
C. 50000
D. 50500
3. If the 10 times of the 10th term of an AP is equal to 15 times to the 15th term, then the 25th term is:
A. 25 times of 25th term
B. zero
C. 1
D. 2
4. The number of terms of the series 51,49,47,...37 is
A. 8
B. 5
C. 10
D. 7
6. How many terms of the series 24,20,16,...are required so that their sum is 72?
A. 8 or 6
B. 12
C. 9 or 4
D. 11
8. The number of terms in the sequence -17, -10, -3,...., 144 is:
A. 26
B. 25
C. 27
D. 24
10. The terms of an A.P. are doubled, then the resulting sequence is
A. An A.P. with common difference equal to the common difference of the original A.P
B. An A.P. with common difference thrice the common difference of the original A.P
C. An A.P. with common difference double the common difference of the original A.P
D. An A.P. with common difference half the common difference of the original A.P
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