Question

the age of Tanmay and Naman are in the ratio 5 ratio 7 after 5 years the ratio of their ages will be 5 ratio 6 find their present ages​

Answer 1

Answer:

let the ages be 5x and 7x

5x+5/7x+5=5/6

30x+30=35x+25

5=5x

x=1

5x is 5

7x is 7

5x plus 5 is 10

7x plus 5 is 12

10 upon 12 is 5 upon 6

Answer 2

Answer: Their present age is 5 and 7.

Step-by-step explanation: Tanmay and Naman ages are in the ratio of

Present age

                            5 : 7

                        let it 5y : 7y                                      (equation 1)

Age after 5 years = present age + 5

   (given)      5 : 6 = 5y+5 : 7y+5                             (equation 2)

         or,        5/6  = 5y+5/7y+5

         or,   5(7y+5) = 6(5y+5)                          ( by cross multiplication)

         or,   35y+25 = 30y+30

         or,  35y-30y = 30-25

         or,            5y = 5        

         or,             y = 5/5    

         or,             y = 1

    Now replace y by 1 in (equation 1)

                       5(1) : 7(1)                                    

                          5 : 7

so their present ages are

          Tanmay is 5 years old.

           Naman is 7 years old.

     

Hope it helps......