Question

18. The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is
44. Find the first three terms of the AP.
19. Subba Rao started work in 1005 at an annual salary of 5000 and aceivedaniem​

Answer 1

Answer:

Given,

(a+3d)+(a+7d)=24

2a+10d=24

a+5d=12. 1st equation

and (a+5d)+(a+9d)=44

2a+14d=44

a+7d=22. 2nd equation

by solving this we get a= -13 and d= 5

therefore 1st three terms of AP are -13,-8,-3

hope this helps....and sorry I couldn't answer the 2nd one since it's incomplete