Question
Ajay purchased two items for a total of Rs. 750. He sold
the first item at an 18% loss and the second item at an 18% profit. The selling prices of both items were the same. Determine the difference in their original purchase prices.Solution
Let the cost price of the two articles be Rs. x and Rs. y respectively. Selling price of first article = 0.82 × x = Rs. 0.82x Selling price of another article = 1.18 × y = Rs. 1.18y According to question, 0.82x = 1.18y x/y = 1.18/0.82 = 59/41 Desired difference = (59 – 41)/100 × 750 = 0.18 × 750 = Rs. 135
In a spring-block system executing SHM, at displacement x= A/2, the ratio of kinetic to potential energy is:
The dimension of which of the following is the same as that of impulse?
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
Parsec is the unit of
A force of 50 N moves a body 2 meters in the direction of the force. Find work done. Â
The functioning of a quartz crystal in a watch is based on which principle?
Two wires made of the same material have lengths in the ratio 1:2 and diameters in the ratio 2:1. If the same force is applied to both, what is the rat...
An ant can see objects all around it due to the presence of which type of eyes?
Which of the following does not affect the value of acceleration due to gravity?
Which of the following is an alpha particle which is emitted in radioactivity?