It takes Rumi 15 minutes to inspect a machine and Sami needs 18 minutes to inspect a machine. They both start inspecting machines separately at 9:00 AM. At certain points of time, both of them will finish inspecting a machine at the same time. When will this occur for the first time?
15% monthly salary increase resulted in a Tk. 14,400 per year increase in salary for an employee. What was his monthly salary before the increase?
50 girls and 100 boys were invited to a party. If 30% of the girls and 75% of the boys attend the party, what percentage of guests attended?
If Tk. 30,000 was invested in the share market when the price per share was Tk. 50 and Tk. 45,000 was invested when the price per share was Tk. 25, what was the average price per share purchased?
In a class of 120 students. 70 percent can speak Bengali and the rest can speak English only. If 25 percent of those in the class who can speak English can also speak Bengali, how many of the students in the class can speak Bengali?
A train went 300 miles from City X to City Y at an average speed of 100 mph. At what speed did it travel on the way back if its average speed for the whole trip was 120 mph?
If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+Y is odd 2. XY is odd 3. X+2y is even
A wholesaler sells goods to a retailer at a profit of 20%. The retailer sells to the customer, who pays 80% more than the cost of the wholesaler. What is the retailer's profit?
Business Partners, A, B and C agree to divide their total profit for the year in the ration 1 : 2 : 2 respectively. If B's share of the profits is Tk. 27,200, what was the total profit of the business partners for the year?
One third of the faculty members of a department are female. Sixteen of the male teachers are unmarried, while 60% of them are married. The total number of faculty members in the department is :
A train passes city X at 8.25 am and city Y at 11.05 am. The distance between cities X and Y is 320 miles. What is the average speed, in miles per hour, of the train?
A carpet that measures 5 ft by 9 ft covers 75% of a floor. What is the area of the floor?
What is 25% of 13/50 of 200?
The average of 5 numbers is 25. If 2 more numbers, with an average of 18, are added to these numbers, what will be the average of the combined 7 numbers?
What is the minimum number of chocolates that must be added to an existing batch of 220 chocolates, so that the total batch can equally be divided among 2, 5 and 7 persons?
Ashraful has purchased a square sheet of plywood of 169 square feet area. To cover a wall he must cut off 3 feet from a side. What is the area, in square feet, of the wall?
In the figure below ACDH and BCEF are rectangles, AH=3, GH=3, GF=3, and EF=6. What is the area of BCDG?
In an examination there ere 60 multiple choice questions. For every right answer 1 point is added and for every wrong answer 0.25 points are deducted from the total. No point is added or deducted for any unanswered question. An applicant answered 75% of the total number of questions and got a total point of 30. How many answers of the applicant were correct?
A painter has painted 1/3 of a rectangular wall that is 12 feet high. When he will paint another 50 square feet of the wall he will have finished 50% of the job. What is the length of the wall?
If one number exceeds another number by 12 and the smaller number is 1/3 time the larger number, then the larger number is :
A dealer had 24 mobile phones. He sold some of them at a profit of Tk. 950 each and he sold the rest at a loss of Tk. 500 each. If his total profit was Tk. 9,750, how many phones did he sell at a loss?
A 20% reduction in price allows a customer to purchase 5 kgs of rice at Tk. 160. How much would he have to pay if there was no discount?
Two types of tea, Sreemangal Red costing Tk. 50 per kg and Sreemangal Black costing Tk. 70 per kg, are mixed together to form a new blend of tea. If the new blend costs Tk. 58 per kg, how much of Sreemangal Red is required to make 10 kgs of the new blend?
4% of which number is 20?
If 15 women working at the same rate can produce 25 dolls in an hour, how many dolls would 20 women make in 45 minutes?
0.02 times 0.7 is :
A full can of petrol weighs 1.5 kgs. When half full it weighs 1 kg. What is the weight of the empty can?
If the sum of 3 consecutive integers is 150, then the sum of the two smaller integers is :
An empty pool is being filled with water at a constant rate. It takes 9 hours to fill 3/5 th of the pool. How much more time will it take to completely fill the pool?