In a class 75% passed in English, 60% in Mathematics and 25% failed in both the subjects. What is the percentage who passed in both subjects?
A person makes a profit of 10% on 25% of the quantity and loss of 20% on the rest of the quantity. What is the gain or loss is percentage on the whole?
Increasing the original price of an item by 10%, then decreasing by 20% and then again increasing the price by 10% is equivalent to :
In a row of trees is 7th from the left and 14th from the right end. How many trees are there in the row?
The average age of 12 children is 15 years. If another child comes the average age comes to 13. What is the age of the new child?
A train 150 meter long and running at a speed of 60 km per hour takes 30 seconds to cross a bridge. What is a length of the bridge?
A dishonest shopkeeper professes to sell ghee at his cost price. But he uses a false weight of 950g for a kilogram. His gain percentage is :
A sum of money at simple interest amounts to Tk. 2800 in 2 years and to Tk. 3250 in 5 years at a rate of :
A dog takes 4 leaps for every 5 leaps of a hare but 3 leaps of the dog is equal to 4 leaps of the hare. Compare their speeds :
In a mixture of 50 liters, milk and water are in the ratio of 3 : 2. How much water should be added to the mixture to make the ratio of the two equal?
If x is 90% of y then what percent of x is y?
The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by :
A father is 61 and his son is 16. In how many years will the father be twice as old a his son?
Two motorists drove their cars at a speed of 45 km per hour and 50 km per hour respectively. One car took 10 minutes longer than the other to travel a distance. Find the distance travelled.
A husband and wife have six married sons. Each of them has four children. The total number in the family is :
What is 200% of 0.010?
On selling 17 balls at Tk. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is :
Two-fifty of one-fourth of three-seventh of a number is 15. What is the half of the number ?
A gas tank is 1/5th full and requires 32 gallons more to make it 3/7 full. What is the capacity of the tank?
A and B can do a piece of work in 9 days, B and C in 12 days, A and C in 18 days. If all of them work together, then how much time will they take to finish the same work?
A family had provision of food for 15 days. After 5 days 8 guests came and the provision lasted 6 days. How many are the members of the family?
5-3+5-3+5-3+5-3+5-3=?
How many degrees are between the hands of a clock at 3 : 30 ?
An angle which is less than 30° and larger than 180° is classified as :
A husband and wife have six married sons . Each of them has four children . The total number in the family is :
For what value of x is 82x-4=16x?
Multiplication of the following commands can be used to save a file ?
Which of the following is a key board command to copy some text in MS word ?
A and B together have Tk. 1210. If 4/15 of A's amount is equal to 2/5 of B's amount, what is amount B has ?
A room of size 5m X 3m and height 3m requires walls and ceiling painting. What is the area to be painted?