Class 12th model set 2 for term 2

If 12th term of an A.P. is -13 and the sum of the first four terms is 24, what is the sum of first 10 terms ?

If 12th term of an A.P. is -13 and the sum of the first four terms is 24, what is the sum of first 10 terms ?

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The first term of a sequence is 1, the second is 2 and every term is the sum of the two preceding terms.The n^(th) term is.

Determine 2nd term and 5'th term of an A.P. whose 6th term is 12 and 8th term is 22

If the 5th and 12th terms of an A.P. are 30 and 65 respectively, what is the sum of first 20 terms?

If the 8th term of an A.P. is 37 and the 15th term is 15 more than the 12th find the A.P. Also find the sum of first 20 terms of this A.P.

Find the 20th term of the AP whose 7th term is 24 less than the 11th term, first term being 12.

The starting value of the model class of a distribution is 20. The frequency of the model class is 18. The frequencies of the classes preceeding and succeeding are 8,10 and the width of the model class is 5, then mode is

The ratio of the 11th term to the 18th term of an AP is 2 : 3 . Find the ratio of the 5th term to the 21st term and also the ratio of the sum of the first five terms to the sum of the first 21 terms.