A will will 8m long, and 22.5 cm thick is made of bricks, each measuring 25 cm X 11.5 cm X 6cm. The numbe of bricks will be required to surround the plot?
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?
The average age of 12 children is 15 years. If another child comes the averages age comes to 13. What is the age new child?
A dishonest shopkeeper professes to sell ghee at his cost price. But he these a defective weigth machine which reads of 950g for a kilogram. The gain of shopkeeper in percentage is
As the price of mango has reduce by 20%, it is now possible to by 2 more mangoes Tk. What is the current price of 50 mangoes?
In a row trees is 7 th from the left and 14% from the right end. how many trees are there in the row?
P works twice as fast Q. If Q can complex a work in 12 days independently, the number of days in which P and Q can together finish the works is_____
A husband and wife have six married sons. Each of them has four children. The total number in the family is_____
A gas tank is 1/5 th full and requires 32 gallons to make it 3/7 full. What is the capacity of the tank?
If the salary of an emplyees is reduced by 10 percent for has late attendance and them increased by 10 percent on a pardon, how much does he lose?
35% of Nabil's is equal to 25% of Saila's income. The ratio their income is
The simple interest on a of money will be tk. 600 after 10 years. if the principle is treble after 5 years, what will be the total interest at the end the tenth year?
A man spent 1/2 of his money and then lost 1/4 of the reminder. He was left with Tk. 3,600. How much did he start with?
In a class of 78 students 41 are taking 22 are taking German of the students taking french or German, 9 are taking courses. how many student are not cancelled is either course?
Find the value of n if 27n-13=243
P=52 then the value of P2 is -
(2x-1)2÷x-5 is equal to ---
If a+2b=6 and ab =4, What is 2a+1b?
If the difference between the circumference and diameter of a circle is 60 cm then the radius of the circle is____
A triangular plot with sides of 25 feet and 55 feet is to surrounded by a fence built on pillars set 5 feet apart. How many pillars will be required to surround the plot?