In 1950, Richard was 4 times as old as Robert. In 1955, Richard was 3 times as old as Robert. In which year was Richard 1.3 times as old as Robert? Choose the correct choice from the following choices:
A) 1960  B) 1965  C) 1970  D) 1975  E) 2040
In 1950: Ri = 4 Ro -------------- eq1   In 1955: Ri +5 = 3(Ro+5)---------eq2   Thus in 1950, solving eq1 and eq2   Ro= 10 , Ri =40   Now for each year we can calculate:   1960: Ri = 50 , Ro =20   1965: Ri= 55, Ro=25   2040: Ri= 100, Ro = 130   Thus Ans:2040
<result>E</result>
In 1950, Richard was 4 times as old as Robert. In 1955, Richard was 3 times as old as Robert. In which year was Richard 1.3 times as old as Robert?