Related Questions

While preparing electrolyte for a lead-acid battery
A water is poured into acid
B acid is poured into water
C anyone of the two can be added to other chemical
D none of the above
Opponents of laws that require automobile drivers and passengers to wear seat belts argue that in a free society people have the right to take risks as long as the people do not harm the others as a result of taking risks.As a result,they conclude that it should be each person's decision whether or not to wear a seat belt. Which of the following, if true,most seriously weakens the conclusion drawn above ?
A Many new cars are built with seat belts that automatically fasten when someone sits in the font seat.
B Automobile insurance rates for all automobile owners are higher because of the need to pay for the increased injuries or deaths of people not wearing seat belts.
C Passengers in airplanes are required to wear seat belts during takeoffs and landings.
D The rate of automobile fatalities in districts that do not have mandatory seat-belt laws is greater than the rate of fatalities in districts that do have such laws.
In a certain class 40% of the students are girls, and 20% of the girls wear glasses. What percent of students in the class are girls who wear glasses.
A 6%
B 8%
C 20%
At a symposium, 20% of the professors are psychologists , 60% are biologists and the remaining 12 professors are economist. If 20 of the professors wear glasses, what percent of the professors do not wear glasses?
A 20%
B 331/3%
C 50%
D 66.2/3%
The students wear blue uniform. Here the word 'wear" can be replaced by.
A bear with
B put on
C put up
D put off
Four persons can compte a job in 8 days. After four days two persons have left the work. How many days should it take for the remaining persons to complete the work?
A 10
B 6
C 4
D 8
A Company employs 15 persons, each works 44 hours a week . If 4 persons are absent, how many hours a week would the rest of the persons have to work to make up the time lost ?
A 45
B 48
C 60
D 50
Four persons can complete a job in 8 days. After four days two persons have left the work. How many days would it take for the remaining persons to complete the world ?
A 10
B 6
C 8
D 4
Four persons can complete a job in 8 days. After four days two persons have left the work. How many days would it take for the remaining persons to complete the work?
A 10
B 6
C 4
D 8
The cost of renting a small bus for a trip was Taka X which was to be shared equally by 16 persons . Actually 10 persons availed the trip. How much more Taka will be the cost per persons ?
A X/6
B X/10
C 3X/40
D x/16

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