Question
What is the average of the number of students playing
football in schools C, D and E? Study the following information carefully and answer the questions. The given bar graph shows the total number of students playing football in five different schools namely A, B, C, D and E and also given the percentage of students playing badminton in these five different schools. Note: (i) The total number of students = Total number of students playing football + Total number of students playing badminton (ii) Students are playing only two sports i.e. Football and Badminton.Solution
Required average = (15 + 30 + 72)/3 = 39
Which of the following is the least penetrating power rays ?
The device used for locating submerged objects under sea is –
Which of the following instruments is used to measure humidity?
This relationship between the angles of incidence and refraction and the indices of refraction of the two media is known as ________.
‘Therm' is the unit of –
Which of the following layers of the atmosphere makes Radio Communication possible?
Which of the following circuit elements is used to 'block' DC in an electronic circuit?
Which of the following is equal to a measurement of 1 mA?
What is the audible frequency range?
What is the descending order of these radiations based on their frequencies?