১২১২১
A bag contains 26 purple jellybeans, 15 green jellybeans, and 9 yellow jellybeans; these jellybeans are the only items in the bag. If a person peaches into the bag and picks out only purple jellybeans, how many jellybeans would the person have to pick out in order to double the probability that a jellybean picked out of the bag at random would be a green jellybean?
উত্তর
25
১২১২২
A certain lab experiments with white and brown mice only. IN one experiment, 2/3 of the mice are white. If there are 13 brown mice in the experiment how many mice in total are in the experiment?
উত্তর
39
১২১২৩
In a certain growth fund, 3/5 of the investment capital is investment in stocks, and of that portion, 13 is invested in preferred stocks. If the mutual fund has $8,46,000 invested in preferred stocks, what is the total amount money invested in the fund?
উত্তর
4230000
১২১২৪
In a sample of associates at a law firm, 35 percent are second year associates, and 55 percent are not first-year associates. That percentage of the associates at the law firm have been there for more than two years?
উত্তর
20
১২১২৫
A man and his wife have three sons, and every of the sons has a sister. How many are there in the family?
উত্তর
6
১২১২৬
A restaurant orders 150 kg of pumpkins from of the farmer’s market. The farmer fills the order with 23 pumpkins. The average mass of the first 20 pumpkins is 6.5 kg. What must be the minimum average mass of the remaining 3 pumpkins to fill the order?
উত্তর
6.67 kg
১২১২৭
A travel company wants to charter to plane to the Bahamas. Chartering the plane costs $8,000. So far 18 people have signed up for the trip. If the company charges $300 per ticket, how many more passengers must sign up for the trip before the company can make any profit on the charter?
উত্তর
9
১২১২৮
A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is decaffeinated, what percent, by weight, of the grocer’s stock of coffee is decaffeinated?
উত্তর
0.28
১২১২৯
A farmer with 1,350 acres of land had planted his fields with corn, sugar cane, and tobacco in the ratio of 5: 3: 1, respectively, but he wanted to make more money, so he shifted the ratio to 2: 4: 3 respectively. How many more acres of land were planted with tobacco under the new systems?
উত্তর
300
১২১৩০
In 40 minutes, Akash walk 2.5 miles and Rupa walk 1.5 miles. In miles per hour, how much faster is Akash walking?
উত্তর
1.5