৫৫৮২
rectangular sheet of paper, 10cm long and 8cm wide has squares of side 2cm cut from each of its corner. The sheet is then folded to form a tray of depth 2cm. What is the volume of this tray?
উত্তর
48cm 3
৫৫৮৩
A group of 20 friends formed an investment club, with each member contributing an equal amount to the general fund. The club then invested the entire fund, which amounted to 1 taka, in stock X. The value of the stock subsequently increased 40 percent, at that point the stock was sold and the proceeds divided evenly among the members. In terms of t, how much money did each member of the club receive from the sale?
উত্তর
(7t/100)
৫৫৮৪
machine is sold at a profit of 10%. Had it been sold for Tk. 40 less, there would have been a loss of 10%. What was the cost price?
উত্তর
Tk. 200
৫৫৮৫
A train crossed a platform in 45 seconds travelling with a speed of 36 km/h. If the length of train is 200 meters, then what will be the length (in meters) of the platform?
উত্তর
250
৫৫৮৬
The perimeters of two squares are 40cm and 30cm. Find the perimeter of a third square whose area is equal to the difference of the areas of the two squares.
উত্তর
26.46 cm
৫৫৮৮
In a set of 3 numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?
উত্তর
3.5
৫৫৯০
What is the miximum number of 3 × 3 squares that can be formed form the squares in the 6 × 6 checker board to the right?
উত্তর
16