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
The study in which the investigators attempt to trace an effect is known as :
A Survey research
B Ex-post facto research
C Historical research
D Summative research
The investigators suspect the owners having set fire to the factory deliberately.
A of
B for
C being
D intentionally
71 Percent of respondents indicated that using a co-working space increased his creativity . No error .
A A
B B
C C
D D
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
In a market suvey 20% respondents opted for product A whereas 60% opted for product B. the remaining individuals were not certain. If the difference in number between those who opted for product B and those who were uncertain was 720 . How many individuals were covered in the survey?
A 1440
B 1800
C 3600
D None
A student obtained 60, 75 and 85 marks respectively in 3 monthly examinations in physics and 95 marks in the final examination. The 3 monthly examinations are of equal weightage whereas the final examination is weighted twice as much as monthly examination. What is his average mark physics?
A 82
B 85
C 79
D 78.75
In Dhaka City 90% of the population own a car, 15% own a motorcycle, and everybody owns one or the other of both. What is the percentage of motorcycle owners who own cars?
A 33%
B 66%
C 50%
D 90%
In a city 90% of the population own a car , 15% own a motorcycle, and everybody owns one or the other or both. What is the percentage of motorcycle owners who own cars?
A 5%
B 15%
C 3313%
D 50%
In New jersey 90% of the population own a car, 15% own a motorcycle, and everybody owns one or the other or both. What is the percentage of motorcycle owners who own cars?
A 647%
B 1523%
C 3313%
D 4512%

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