Of the 65 cars on a car lot, 45 have air conditioning, 30 have power windows, and 12 have both air conditioning and power windows. how many of the cars on the lot have neither air conditioning nor power windows?
A stock decreases in value by 20%. By what percentage must the stock price increase to reach its former value?
An author received Taka 0.80 in royalties for each of the first 100,000 copies of his book sold, and Taka 0.60 in royalties for each additional copy sold. If he received a total of Taka 260,000 in royalties, how many copies of his book were sold?
If 8 dozens of bananas are purchased at the rate of Taka 30 per dozen and 12 dozens are purchased at Taka 25 per dozen, what rate per dozen it should be sold to make a profit of Taka 3 per dozen?
In a city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city has neither black hair nor black eyes?
A sum of Taka 3000 invested at 4% per annum for a number of years earned Taka 300 interest. What is the time period?
A jar contains black and white marbles. If there are ten marbles in the jar, all of the following could be the ratio of black and whit marbles EXCEPT:
Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are :
If 4 cows prduce 4 liters of milk in 4 days, how many days does it take for 8 cows to produce 8 liters of milk?
1
2
৪
8
১২
A company employs 15 workers working 44 hours a week to complete a job. If 4 men are ill, how many hours a week would the rest have to works to complete the job?
A chair originally cost Taka 50.00. The chair was offered for sale at 108% of its cost. After a week the price was discounted 10% and the chair was sold. The chair was sold for:
An emergency vehicle travels 10 miles at a speed of 50 miles per hour. How fast must the vehicle travel on the return trip if the round-trip if travel is to be 20 minutes?
Ahsan travels for 6 hours at a rate of 50 miles per hour. His return trip takes 7.5 hours. What is his average speed for the whole trip?
At a selling price of Taka 275 a book yields 25% profit. What selling price will yield the profit of 10%?
If the interest on Taka 500 for 4 years and Taka 600 for 5 years is Taka 500; what will be the rate of interest?