Let cost of a mouse and a keyboard be x & y respectively. As per the question, 2x + 3y = 150 3x + 2y = 120 Solving the equation, For x and y, x = Rs. 12 & y = Rs. 42 Cost of 5 mouse and 2 keyboard = 5x + 2y = 5 × 12 + 2 × 42 = Rs.144
Which of the following materials behaves as a dielectric?
The weight (W) of a body is derived from which formula?
Which of the following is caused due to the Newton’s first law of motion?
I. When a motorcar makes a sharp turn at a high speed, we tend to ...
An electric dipole when held at 30 ֯ with respect to a uniform electric field of 103 N/c experience a torque of 12 × 10-26 Nm. C...
Pycnometer is an instrument used to measure the –
The reason for a swimming pool to appear less deep than the actual depth is –
A sound with a single frequency is called a:
Newton's rings can be obtained in:
Boyle’s Law is applicable to gases under which conditions?
A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will -
