২৭১২
Leto's department can deliver enough parts to fill a storeroom in 8 hours. Jessica's department uses the part to buld another product. Her department can deplete a full storeroom in 1 hours starting with an empty storeroom. how long will it take leto's area to fill the storeroom while jessica's department is working?
উত্তর
24
২৭১৩
A shipping company currently charges the same price for each package that it ships. If the current price of each package were to be increased by $ 1,6 fewer of the package could be shipped for $120 ,excluding sales tax. what is the current price of shipping each package?
উত্তর
$ 4
২৭১৪
In how many different ways can a group of 8 people be divided into 4 teams of 2 people each?
উত্তর
105
২৭১৫
The sum of the fourth and twelfth term of an arithmetic progression is 20. what is the sum of the first 15 terms of the artihmetic progression?
উত্তর
210
২৭১৬
of the 300 economists: 75% invested in stock market, 40% invested in bond market and 15% invested neither stock nor bond. How many of them invested only " in stock market?
উত্তর
162
২৭১৭
Reba's grade was in the 80th percentile out of 120 grades in her class. In another class of 200 students there were 24 grades higher than Reba's.If nobody had Reba's grade. then Reba was what percentile of the two classes combined?
উত্তর
67th
২৭১৮
50% of the apartments in a certain building have windows and windows floors, 25% of the apartments without windows have hardwood floors. If 40% of the apartments with windows have hardwood floors?
উত্তর
16.66%
২৭১৯
Bob just filled his car's gas tank with 20 galions of gasohol , a mixture consisting of 5% ethanol and 95% gasoline. If his car runs best on a mixture consisting of 10% ethanol and 90% gasoline, how many gallons of ethanol must he add into the gas tank for his car to achieve optimum performance?
উত্তর
9/10
২৭২০
A certain city with population of 132,000 is to be divided into 11 voting districts and no district is to have population that is more than 10 percent greater than the population of any other district. What is the minimum possible population that the least population district could have?
উত্তর
10700