Number System
20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ?
Let the middle digit be x. Then, 2x = 10 or x = 5.So, the number is either 253 or 352. Since the number increases on reversing the digits, so the hundred's digit is smaller than the unit's digit. Hence, required number = 253.
EXAMIANS