The average weight of A, B and C 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg. Then the weight of B is
A. 17 kg
B. 20 kg
C. 26 kg
D. 31 kg
The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg find the average weights of all the boys in the class.
A. 47.55 kg
B. 48 kg
C. 55 kg
D. 49.25 kg
The only Sahabi who didn’t see the Holy Prophet (PBUH) was
A. Abdul Rahman
B. Qasim
C. Awais Qarni
D. Usman
Multi-meter is an instrument which can be used to measure?
A. Voltage
B. Current
C. Resistance
D. All of the above
The working principle of transformer.
A. Electrostatic induction
B. Electric Charge
C. Neutralization
D. Electromagnetic induction