Question
Six students (D, E, F, G, H and I) sit in a linear row
facing south in a classroom but not necessarily in the same order. One person sits between D and F. Two persons sit to the right of F. H sits third to the right of G. G doesn’t sit adjacent to E or I. Who sits second to the left of G?ÂSolution
F sits third from extreme left end of row. One person sits between D and F. H sits third to the right of G. G doesn’t sit adjacent to E or I. We get D sits either at extreme left or second from extreme right end of row. H sits at extreme left end of row. Either I or E sits at extreme right end of row. The final arrangement is as follows: Either I or E sits second to the left of G. H        I/E      F         G        D        E/I     Â
Length and breadth of a rectangular field is (x + 7) cm and (x – 6) cm, respectively. If the cost of ploughing the field at a rate of Rs. 6 per cm² i...
The volume of cone is 1320 cm3. If its height is 1.4 cm then find the radius of the cone.
In an exam of 100 marks, the average marks of a class of 38 students are 72. If the top 3 scorers of the class leave, the average score falls “dow...
The circumference of a circle is equal to the perimeter of a rectangle whose length and breadth are in ratio 10:11, respectively. If the area of the rec...
The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 40 m, then find the area (in m2) of the rectangle.
Total surface area of Cuboid is 1875 cm ² and the Sum of its Length, breadth and height is 45cm, and then find out the sum of the squares of its length...
The circumference of a semi-circle is 108 cm. What is the area of the circle with the same radius as the semi-circle? (Take π = 22/7)
Find the total surface area of a right circular cylinder with radius 7 cm and height 10 cm. (Take π = 22/7)
At the end of a business conference the ten people present all shake hands with each other once. How many handshakes will there be altogether?
A rectangular park is 30 m long and 20 m wide. A path of uniform width 2 m is built inside along its boundary. Find the area of the path.