Latest KVPY Aptitude Question SOLUTION: In a thermally isolated system, two boxes filled with an ideal gas are connected by a valve. When the valve is in closed position, states of the box 1 and 2, respectively, are (1 a
In a thermally isolated system, two boxes filled with an ideal gas are connected by a valve. When the valve is in closed position, states of the box 1 and 2, respectively, are (1 atm, V, T) and (0.5 atm, 4V, T). When the valve is opened, the final pressure of the system is approximately
option
(A) 0.5 atm
(B) 0.6 atm
(C) 0.75 atm
(D) 1.0 atm
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 ?
frank
Arithmetic is numbers you squeeze from your head to your hand to your pencil to your paper till you get the answer.