Question
A student's average score across five subjects is 80. If
the scores in four subjects are 78, 85, 82, and 88, what is the average of the top three highest-scoring subjects?Solution
Total marks of 5 subjects = 80×5 = 400 Marks of 5th subject = 400 - (78 + 85 + 82 + 88) = 400 - 333 = 67 Top 3 scores = 88, 85, 82 Required average = 1/3 (88 + 85 + 82) = 255/3 = 85
When electric current is passed through a wire, the amount of heat produced in a wire depends upon _____.
I. Length
II. Thickness
Which of the following is true about the digestion process of the Paramecium ?
I. Food is taken in at a specific spot.
II. Food is moved t...
Heat from the sun reaches earth by the process of –
Which of the following element is found in maximum percentage in the human body?
The apparent weight of the body becomes zero in which of the following cases in the elevator?
The refractive index of glass is 1.5. What is the speed of light in glass? Speed of light in vacuum is 3.0 x 108 m/s.
Biogas which is used for cooking purpose is a mixture of which of the following two components?
Which of the following is an example of mutualism?
Which of the following glands is both endocrine and exocrine?
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