১২৯০৩
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
১২৯০৪
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
১২৯০৬
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
১২৯০৮
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