One year ago, the ratio of Roonie’s and Ronaldo’s age was 6: 7 respectively. Four years hence, this ratio would become 7: 8. How old is Ronaldo ?	Select
A) 32 B) 33 C) 34 D) 35 E) 36
7(x-1)=6(y-1)=&gt; 7x-6y-1=0 ----eq1   8(x+4)7 -6 -1= 
<gadget id="calculator">7 -6 -1</gadget>
<output>0</output>
0 ----eq1   8(x+4)=7(y+4)=&gt; 8x-7y+4=0 ----eq2   on solving eq1 n eq2   y=36   ANSW36R:36
<result>E</result>
One year ago, the ratio of Roonie’s and Ronaldo’s age was 6: 7 respectively. Four years hence, this ratio would become 7: 8. How old is Ronaldo ?