Question

2. Marks (out of 30) of seven students in an examination
are 4, 15, 6, 7,5, a and b, where a (> 0) is a multiple of 4
and bis a prime.
What is the maximum possible value of the difference
between the maximum and minimum marks?
(1)25
(2) 26
(3) 27
(4) 29​

Answer 1

Answer:

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Answer 2

Answer:

maximum value of range

if a is multiple of 4 then maximum no. of a =4×7=28

and minimum prime no. b=2 then maximum _minimum =28_2=26