Question

12. If a, b and care in A.P.. then the relation between them is given by
a) 2a = b + c
b) 2b = a + c
c) a = b + c
d) 2c = a + b
13. A sum of Rs. 1000 is invested at 8% simple interest per annum. The interest at
the end of 30 years is
a) Rs. 30000
b) Rs.2400
c) None of these
d) Rs.8000
14. The common difference of the AP whose a = -3n+ 7 is
a) 3
b) 1
c)-3
d) 2
15. The 7th term from the end of the A.P. - 11.-8.-5. ........ 49 is
a) 28
b) 31
c)-11
d) - 8

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Answer 1

Answer:

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