Question
In a test, P got 26% of total marks and failed by 30
marks while Q got 46% of total marks which is 24 more than passing marks. Find the total marks of the test.Solution
Let the total marks of the test be ‘x’ Therefore, marks scored by P = 0.26x Therefore, passing marks of the test = 0.26x + 30 Marks scored by Q = 0.46x Also, passing marks of the test = 0.46x – 24 Therefore, 0.26x + 30 = 0.46x – 24 Or, 0.26x = 54 Or, x = 54/0.2 = 270 Therefore, total marks of the test = 270
Water gets cooled, when ice is immersed in it, this phenomenon is known as
Red light is used for signals because it has –
Among the following, which has the lowest density?
What term describes the resistance of an object to changes in its state of motion or rest?
A concave lens has a focal length 15 cm. If the object is placed at 30 cm from the lens, what is the image distance?
Temperature of the Sun is measured by?
Which Vitamin is soluble in water?
 Photovoltaic cells are:Â
How much time does a Geostationary satellite take to complete one orbit, at the height of 35790 km?
Which atmospheric layer contains ozone layer?
Relevant for Exams:
