গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮২১–১৮৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The radius and height of a cylinder are in the ratio 5 : 7 and its volume is 4400 cm3. Then its radius will be- MCQ
- A right-angled triangle, whose perpendicular sides measure 2.4 cm and 1.8 cm, is inscribed in a circle. What is the diameter of the circle (in cm)? MCQ
- The ratio of total surface area to lateral surface area of a cylinder whose radius is 20 cm and height 50 cm, is - MCQ
- The right circular cone of height 24 cm has a volume of 1232 cm3, then the area of its curved surface is? MCQ
- Two cans have the same height equal to 21 cm. One can is cylindrical, the distance of whose base is 10 cm. The other can has square base of side 10 cm. What is the difference in their capacities? MCQ
- If the height of a cone is doubled and its base diameter is trebled, then the ratio of the volume of the resultant cone to that of the original cone is? MCQ
- A right cylindrical vessel is full of water. How many right cones having the same radius and height those of the right cylinder will be needed to store that water? MCQ
- If the radius of a sphere is doubled, how many times does its volume become? MCQ
- 12 spheres of the same size are made from melting a solid cylinder of 16 cm diameter and 2 cm height. The diameter of each sphere is- MCQ
- Angles of a quadrilateral are in the ratio 3 : 4 : 5 : 8. The largest angle is - MCQ
- If a 64 meter ladder is placed against a 32√2 meter wall such that it just reaches the top of the wall, the angle of elevation of the wall is - MCQ
- If a regular square pyramid has a base of size 8 cm and height 30 cm. What is its volume? MCQ
- The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 3.5 m away from the wall. The length of the ladder is- MCQ
- If a 26 m ladder is placed against a 13 m wall such that it just reaches the top of the wall. What will be the elevation of the wall? MCQ
- The angle of elevation of the top of a tower at a point on the ground 37 m away from the foot of the tower is 45°. What is the height of the tower? MCQ
- The area of a circle whose radius is the diagonal of a square whose area is 16 square cm is - MCQ
- A wire can be bent in the form of a circle of radius 42 cm. If it is bent in the form of a square, then its area will be - MCQ
- The area of a circle is increased by 22 square cm if its radius is increased by 1 cm. The original radius of the circle is - MCQ
- From a circular sheet of paper with a radius of 20 cm, four circles of radius 5 cm each are cut out. What is the ratio of the uncut to the cut portion? MCQ
- If the breadth of a rectangle is decreased by 20%, then to double the area, its length is required to be increased by - MCQ