The heights of 10 students were measured in cm and the results are as follows : 147, 139, 135, 136, 149, 166, 152, 163, 155, 144.
(i) What is the range of the data?
(ii) What is the mean height of the students?
(iii) How many students are there whose height is more than the mean height?
Study the following arrangement of digits, letters and symbols and answer the question given below :
F I 4 K B 5 9 # D R 2 # 7 M G % H V T 3 8 * 1 J A
How many such symbols are there in the above arrangement each of which is both immediately preceded and immediately followed by a digit?
how the answer option c