The number of passengers on Dhaka-Rangpur route increased by 30% when the fare was reduced by 10%. What will be the percentage change in revenue?
In a group of students, 80% of the students weigh less than 60 kg and a total of 32 student weigh less than 50 kg. If 60% of the students weigh at least 50 kg, how many of the students weigh at least 50 kg but less than 60 kg?
What is 2x% of 50?
If x men can do a work in y days, how many days will it take (x+4) men to do the same work?
A box contains m number of chocolates. After distributing the chocolates equally among 16 students you are left with 6 chocolates. Which of the following must be true?
X number of students in a class agreed to donate a total of Tk. Z to a charity. If 4 students drop out, how much more will each of the rest have to contribute so that the total donation remains the same?
If x and y are integers and -9
If 2x-3 is an odd integer, find the next even integer.
One fourth the price of a TV is equal to 1/6th the price of a refrigerator. If the total cost of the TV and the refrigerator is Tk 60000, what is the price of the TV?
If x and y are integers and k=32y+15, which of the following must be an odd integen
If x and y are negative integers and x-y=1, which is the least possible value for xy?
Noman is 3 times as old as Abbas is now. Six years from now, he will be twice as old as Abbas will be then. How old is Abbas now?
In a solution of 60 litre of suger and water, 20% is sugar. How much water (In litre) must be added to make a solution that is 8% sugar?
An amount of 320 is divided among A, B and C such that A receives 30 more than B and C receives 20 more than A. How much does C receive?
Siam needs m minutes to do a task. After he works for k minutes, what part of the task remains incomplete?
Taraq drives from city A to B at 40 km per hour and returns over the same road at 30 km per hour and spends 8 hours away from home including a one-hcur stop for lunch. What is the distance (in km) between city A and city B?
A seller gave 5% discount on the tag price of a book and made a profit of 25% on cost. If the cost of the book was Tk. 380, what was the tag price?
At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin?