Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: · Marks: · Difficulty:
A milkman saves milk in two vessels, a cuboidal and the other a cylindrical one. The capacity of the cuboidal vessel is 20 litres more than the cylinddrical one. When 30 litres of milk is drawn from each of the two full vessels, the amount left in the cuboidal vessel is twice that left in the cylindrical vessel. The capacity (in litres) of the cuboidal vessel is (I.I.F.T., 2005)
(a)30
(b)50
(c)70
(d)130
(e)None of these
Answer
Answer (as printed): C
Explanation
Let the capacity of the cylindrical vessel be $x$ litres. Then, capacity of the cuboidal vessel $=(x+20)$ litres. $$\therefore(x+20)-30=2(x-30) \Rightarrow x-10=2 x-60 \Rightarrow x=50 .$$
Explanation as extracted from the printed page; notation may be imperfect.