Fifteen percent of the people in Chittagong have unlisted phone numbers. If you select 300 names at random from the phone directory, what is the expected number of people who will have an unlisted phone unmber?

Created: 2 months ago | Updated: 1 month ago

১৫

145

৩০০

None of these

Job Solution Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত

267

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Look carefully for the letter pattern, and then choose which letters fill in the gap. CMM, EOO, GQQ----, KUU

Created: 2 months ago | Updated: 1 week ago

GRR

GSS

ISS

ITT

Job Solution Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত

317

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If both length and width of rectangular plot a garden are increased by 20%, how many percent of the area of the plot would be increased?

Created: 2 months ago | Updated: 1 week ago

২০%

24%

36%

None of these

Job Solution Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত

409

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After taking 30 socks out of the dryer, Dina noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the dryer?

Created: 2 months ago | Updated: 1 week ago

২১

১৫

৯

None of these

Job Solution Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত

404

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Tina rented a rickshaw for Tk. 18 plus Tk. 0.10 per km. Ruby rented another rickshaw for Tk.25 plus Tk. 0.05 per km. If each moves d km and paid exactly the same amount of rental, then d=?

Created: 2 months ago | Updated: 1 week ago

100

১২০

135

140

Job Solution Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত

334

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A factory with 3 machines has a job of stamping out a number of pan covers. The newest machine can do the job in 3 days, another machine can do it in 4 days, and the third machine can do it in 6 days. How many days will the factory take to do the job using all three machines?

Created: 2 months ago | Updated: 1 week ago

1.333

4.333

১৩

Job Solution Mutual Trust Bank Ltd Mutual Trust Bank ltd - Probationary Officer - 2016 গণিত

368

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Fifteen percent of the people in Chittagong have unlisted phone numbers. If you select 300 names at random from the phone directory, what is the expected number of people who will have an unlisted phone unmber?

Related Questions

Look carefully for the letter pattern, and then choose which letters fill in the gap. CMM, EOO, GQQ----, KUU

If both length and width of rectangular plot a garden are increased by 20%, how many percent of the area of the plot would be increased?

After taking 30 socks out of the dryer, Dina noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the dryer?

Tina rented a rickshaw for Tk. 18 plus Tk. 0.10 per km. Ruby rented another rickshaw for Tk.25 plus Tk. 0.05 per km. If each moves d km and paid exactly the same amount of rental, then d=?

A factory with 3 machines has a job of stamping out a number of pan covers. The newest machine can do the job in 3 days, another machine can do it in 4 days, and the third machine can do it in 6 days. How many days will the factory take to do the job using all three machines?