The Income of Arjun is 2/3 of Rajan's income and the expenditure of Arjun is 3/4 of Rajan's expenditure. If 1/3 of the income of Rajan is equal to the expenditure of Arjun, then the ratio of the savings of Arjun to that of Rajan is
Let Rajan's income=x, then Arjun's income=(2/3)*x
Let expenditure of Rajan=y, then Arjun's expenditure=(3/4)*y
Given, 1/3 of the income of Rajan is equal to the expenditure of Arjun ⇒ (1/3)*x = (3/4)*y
.'. x/y = 9/4 or y = (4/9)*x
Ratio of savings of Arjun & Rajan = [(2/3)*x - (3/4)*y] : [x - y]
= [(2/3)*x - (3/4)*(4/9)*x] : [x - (4/9)*x]
= 3 : 5
Correct Option 5)
Which is more difficult ?
solve a mathematics? or Mathematics to solve?
G. C
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?