railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Number System Divisibility and Remainder
If the 9-digit number 5p42978n6 is divisible by 72, what is the value of (2p – 1), where n is the second largest of all the possible values of n? Given that p and n are natural numbers.
1
17
2
21
3
15
4
11