Question

sum four consicative terms which are in an ap is 32 and the ratio of first and the last term is 7:15 find the number ​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

let the numbers be a-3d , a-d, a+d , a+3d  

i have selected these terms because when we add one variable would be eliminated.

now

sum=a-3d + a-d + a+d + a+3d  

32=4a

a=8

also,

a-3d/a+3d=7/15

substituting the value of a

8-3d/8+3d=7/15

cross multiply,

15(8-3d)=(8+3d)7

120-45d=56+21d

120-56=66d

64=66d

d=64/66,= 32/33

now you can easily find the numbers by substituting the values..

Hope you understand it.