Related Questions

In a rare coin collection, all coins are either pure gold or pure silver , and there is initially one gold coin for every three silver coins . With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information , how many total coins are there now in this collection (after the acquisition)?
A 40
B 50
C 70
D 90
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?
A Security procedure
B Safeguard procedure
C Identification procedure
D Log-on procedure
E None of the above
Which method implies the collection of information by way of investigator's own examination, without interviewing the respondents?
A Schedule method
B Observation
C Posting questionnaire
D None of the above
Karim has exactly 3 times as many Bangladesh as non-Bangladesh stamps in his collection . Which of the following cannot be the number of stamps in Karim's collection ?
A 54
B 72
C 80
D 96
In Sajib's collection, Bangladeshi stamp is 3 times more than the stamps of other countries . Which of the following cannot be the number of stamps in Sajib's collection ?
A 96
B 72
C 54
D 32
Pallab has exactly 3 times as many Bangladeshi as non- Bangladeshi stamps in his collection. Which of the following cannot be the number of stamps in Pallb's collection?
A 54
B 68
C 96
D 72
The number of stamps in Ziko's collection is 75% of the number in Pallab's collection. If Pallab has 80 more stamps than Ziko, how many stamps do they have altogether?
A 320
B 240
C 560
D 620
The number of marbles in Amin's collection is 80% of the number in Rahim's collection. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether ?
A 720
B 120
C 135
D 400
a collection of unproccssed items is
A information
B data
C memory
D reports

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