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Let the CP of A =100 SP of A at the profit of 15%=115. The SP of A is the CP of B. CP of B =115 SP of B at the profit of 20% =115×120 /100 =138 Profit of B =138-115=23. ATQ- 23 =575 1 =25. 100 =2500. CP of A =2500.
The SI unit of surface tension is:
During electrolysis the reaction at anode is?
A gas is compressed at constant temperature. Which of the following will decrease?
Two identical metallic spheres are charged. One has +Q charge, the other –Q charge. They are connected by a conducting wire. After equilibrium:
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Which of the following is a characteristic of the acids?
When a metal reacts with dilute hydrochloric acid, it produces:
Which of the following processes is responsible for the rusting of iron?
A plane electromagnetic wave travels in vacuum along the z-direction. If the frequency of the wave is 20 MHz, what is its wavelength?
Which of the following is a conductor of electricity?
What are the elements which are liquids at room temperature and standard pressure?
1. Helium
2. Mercury
3. Chlorine
4. Bro...