Question
A scored 32% marks and failed by 70 marks whereas B
scored 64% marks, which was 90 more than the passing marks of the examination. Find the total marks of the examination.Solution
Let the total available marks in the examination be 100x. Marks scored by A = 32% of 100x= 32x Marks scored by B = 64% of 100x= 64x According to question, => 32x + 70 = 64x – 90 => 32x = 160 => x = 5 Total marks of the examination = 100x = 500
What is the SI unit of magnetic flux?
Which mirror always forms virtual, erect, and diminished image?
A tuning fork of frequency 440 Hz resonates with a pipe closed at one end, vibrating in its second overtone . If the speed of sound in air is 330 m/s, w...
The half-life of a radioactive substance is 10 days. The time in which only 1/8th of the original substance remains is:
If mass is doubled and velocity is tripled, how will kinetic energy change? Â
__________ is the metal used for making the filament of the light bulb.
A block rests on another block, and the lower one is pulled with a horizontal force. If the coefficient of friction between them is μ, what is the maxi...
A transformer has 1000 turns in the primary and 100 in the secondary coil. If input voltage is 220 V, output voltage is:
A dielectric placed between the plates of a capacitor increases its:
What is the phenomenon of light splitting into colors when passing through a prism? Â