Question

The ratio of the incomes of A and B last year was 9 : 13. Ratio of their incomes of last year to this year is 9 : 10 and 13 : 15 respectively. The sum of their present incomes is Rs 50,000. What is the present income of B? pls explain it​

Answer 1

Step-by-step explanation:

present income is 10:15 = 2:3

present income of A = (2*50000)/5 = 20,000

B income is 30000

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Answer 2

Answer:

Step-by-step explanation:

A :B

9:13

ratio a and b  9:10 and 13 :15

9:10 gap is 1 and 13: 15 gap is 2

so

9*2=18

10*2=20

   last year a  : present b

final ratio is 18:20

                    13:15

B ratio =20:15

               4:3

4/7=13b

=13*7/4*3/7

b=39/4

A last yo this year=18:13

18/31=9a

a=31*9/18*13/31

=13/2

B income 39/4:13/2

52:78

26:39

B INCOME=50000*39/65

30000