Solution
Given:• A, B, C, D, E are five distinct positive multiples of 10
• A < B < C < D < E
• Median of the 5 numbers = 110
• Range of the 5 numbers = 60
To find:• The value of E
Approach and Working: • Out of 5 given numbers, C is the middle number (either in ascending or descending order)
o Therefore, the value of C = 110
• If C is 110, maximum value of B must be 100 and therefore, maximum value of A must be 90.
• Similarly, if C is 110, minimum value of D must be 120 and therefore minimum value of E must be 130
• As the range is 60,
o When A is 90, E must be 150
o When A is 80, E must be 140
o When A is 70, E must be 130
A can’t be less than 70, as E can’t be less than 130
Analysing Statement 1• As per the information given in Statement 1, A is not 90
o It means A can be either 80 or 70, similarly E can be either 140 or 130
Hence, Statement 1 is not sufficient to answer the question
Analysing Statement 2• As per the information given in Statement 2, E is not 140
o It means A can be either 90 or 70, as E can be either 150 or 130
Hence, Statement 2 is not sufficient to answer the question
Combining Both Statements• Combining the information from both statements, we can write
o E is not 140, from statement 2
o E is not 150, as from statement 1 A is not 90
• Hence, the only value possible for E is 130
Hence, the correct answer is Option C
Answer: C