গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৫২১–১৮৫৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- If the diagonal of a rectangle is 17 cm long its perimeter is 46 cm, find the area of the rectangle. MCQ
- If the diagonal and the area of a rectangle are 25 m2 and 168 m2, what is the length of the rectangle? MCQ
- A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and the rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road? MCQ
- A rectangular grassy plot 110 m by 65 m has a gravel path 2.5 m wide all round it on the inside. Find the cost of gravelling the path at 80 paisa per sq. metre. MCQ
- The perimeter of a rectangle and a square are 160 m each. The area of the rectangle is less than that of the square by 100 sq m. The length of the rectangle is - MCQ
- A rectangular field has to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required? MCQ
- The breadth of a room is twice its height and half its length. The volume of the room is 512 cu. M. The length of the room is - MCQ
- If the total length of the diagonals of a cube is 12 cm, then, what is the total length of the edges of the cube? MCQ
- By what percent the volume of a cube increases if the length of each edge was increased by 50%? MCQ
- A rectangular block 6 cm by 12 cm by 15 cm is cut up into an exact number of equal cubes. Find the least possible number of cubes. MCQ
- The dimensions of an open box are 50 cm, 40 cm and 23 cm. Its thickness is 3 cm. If a cubic cm of metal used in the box weighs 0.5 gms, Find the weight of the box. MCQ
- A solid body is made up of a cylinder of radius r and height r, a cone of base radius r and height r fixed to the cylinder's one base and a hemisphere of radius r to its other base. The total volume of the body (given r = 2) is : MCQ
- A ladder 10 m long just reaches the top of a wall and makes an angle of 60° with the wall. Find the distance of the foot of the ladder from the wall. MCQ
- Find the angle of elevation of the sun when the shadow of a pole of 18 m height is 6√3 long? MCQ
- The angle of depression of a point situated at a distance of 70m from the base of a tower is 60°. The height of the tower is - MCQ
- On the same side of the tower, two objects are located. Observed from the top of the tower, their angles of depression are 45° and 60°. If the height of the tower is 150 m, the distance between the objects is - MCQ
- From point P on a level ground, the angle of elevation of the top of a tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is - MCQ
- A telegraph post gets broken at a point against a storm and its top touches the ground at a distance 20 m from the base of the post making an angle 30° with the ground. What is the height of the post? MCQ
- Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse observed from the ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is : MCQ
- The sum invested in scheme B is thrice the sum invested in scheme A. The investment in scheme A is made for 4 years at 8% p.a. simple interest and in scheme B for 2 years at 13% p.a. simple interest. The total interest earned from both the schemes is Tk. 1320. How much amount was invested in scheme A? MCQ