"Education-Instruction-Inspiration"
Name of Section:
DBBL Probationary Officer-2011
16.
In a certain country, a person in born every 5 seconds and a person dies every 13 seconds. Therefore the birth and death rates account for a population growth rate of one person every---
[DBBL Probationary Officer-2011 : 2011]
Answer
17.
If x and y are positives integers, each greater than 1, and if 13(x-1)= 17(y-1), what is least possible value of (x+y)?
[DBBL Probationary Officer-2011 : 2011]
Answer
18.
A buzzer(হর্ণ) sounds every 15 minutes. If the buzzer sounded at 12 :40 PM, which of the following could be a time at which the buzzer had sounded before?
[DBBL Probationary Officer-2011 : 2011]
Answer