Question

the sum of three no.s in AP is 30 and the ratio of first number to the third no. is 3:7 . Find the numbers​

Answer 1

Answer:

Step-by-step explanation:

Solution:

•°•let the three no.

(a-d) ,a,(a+d)

=>sum of no.=30

3a =30

a=10

now,

=>Ratio of first no. to third no. is 3:7

now,

=>(a-d)/(a+d)=3/7

=>(10-d)/(10+d) =3/7

=>70-7d=30+3d

=>40=10d

=>d=4

and a=10

no. are :

1st=>(a-d)=10-4=6

2nd=>(a)=10

3rd=>(a+d)=10+4=14

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