Question
What is the value of a two digit number?
Statement I:  The sum of the digits of the number is 9. Statement II:  The digit at the tens place is 125% of the digit at the unit place. In each of the following questions, a question and two statements I and II are given. You have to decide whether the date given in the statements are sufficient to answer the question or not.Solution
From I and II Let the number be 10x + y Now, x + y = 9……..(i) ∴ x = 125/100 y = 5/4 y………(ii) From (i) and (ii), we get x = 5, y = 4 ∴ Required number = 54
The length of a rectangle, area of which is 105 cm2, is equal to the radius of a circle of area 1386 cm2. Find the perimeter of th...
The area of a square is 2116 square metres. The breadth of a rectangle is half of the side of the square and the length of the rectangle is thrice its b...
There is a rectangular paper, whose length and breadth are in the ratio 7:8, respectively and it has a perimeter of 60 metres. If a triangular piece wit...
The side of a cube is 4m more than the side of a square. If the ratio of lateral surface area of the cube and the area of the square is 9:1, then what w...
What will be the total surface area of a triangular pyramid whose sides are all 2 cm long?
A wire is in the form of square with side 11 cm. It is bent to form a circle. What is the radius of the circle?
A rectangular piece of land has a perimeter of 66 metres and length of 21 metres. If the area of the land is to be divided into 9 equal portions, then w...
The length of a rectangle is 8 metres more than its width. If the perimeter of the rectangle is 64 metres then what is the area (in m2Â ) of ...
The volume and height of a cylinder are 7436 cm3 and 14 cm. Find the radius of the cylinder.
In a rectangular floor of length and breadth of 20 metres and 9 metres, respectively, square tiles each of 3 metre edge length are to be laid. If the co...