Monday

January 26, 2015

January 26, 2015

Posted by **RAUNAK** on Saturday, February 15, 2014 at 1:26am.

- MATH -
**Steve**, Saturday, February 15, 2014 at 6:32amT10+T11+T12 = (a+9d)+(a+10d)+(a+11d), so

3a+30d = 129

Similarly, for the last three terms,

3a+57d = 237

a=3

d=4

and the sequence is

3,7,11,...,83

**Answer this Question**

**Related Questions**

Maths - The 3rd term of an AP is 10 more than the first term while the fifth ...

math - The sum of second term and fourth term of G.P is 30 and difference ...

maths - Given that the first term of an A.P is 7 and its 10th term is twice its ...

arithmetic - the sum of the 3rd and the 4th term is 44 and the sum of the 10th ...

Maths - The 5th term of an exponential sequence is 4 and of 2nd term is 35(¡)...

Arithmetic Progression - In an AP the 6th term is half the 4th term and the 3rd ...

Math - 1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)...

math - 1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)...

Math - Name School Team Event 3: Logic and Reasoning (with calculators) 5th/6th ...

Math - The sum of the first seventeen terms of an arithmetic series is 493 The ...