Incomes of two companies A and B are in the ratio of 5 : 8. Had the income of company A been more by 40 lakh, the ratio of their incomes would have been 5 : 4. What is the income of company B?
Choices
A) 80 lakh	B) 50 lakh	C) 40 lakh	D) 64 lakh	E) None of these
Let the incomes of two companies A and B be 5x and 8x respectively.   From the question,   5x+40/8x=5/4 ⇒ 20x + 160 = 40x   ∴ x = 8   ∴ Income of company B = 8x = 64 lakh   Answer 64 lakh
<result>D</result>
Incomes of two companies A and B are in the ratio of 5 : 8. Had the income of company A been more by 40 lakh, the ratio of their incomes would have been 5 : 4. What is the income of company B?