Question
The average of four girls' age is 12 years. The ages of
three of them are 7, 12 and 13 years. Find the age of the fourth girl.Solution
The correct answer is A
The lengths of a pair of parallel sides of a trapezium are respectively 12 cm and 20 cm, and the perpendicular distance between these two sides is 14 c...
The difference between the length and breadth of a rectangle is 27 m. If its perimeter is 194 m, then its area is
The volume of a solid cube is 2744 m3. If whole cube is to be painted at a rate of Rs. 7.5 per m2, then what will be the cost of p...
The length and breadth of a rectangular field are 45 m and 28 m respectively. What is its area?
Circumference of one of the bases of a right circular cylinder is 132 cm. If height of the cylinder is 15 cm more than its radius, then find the volume ...
A rectangular field is 35 m long and 24 m wide. Find the cost of levelling it at Rs. 8 per square metre.
Length and breadth of a rectangle are in the ratio 7:5. If the perimeter of the rectangle is 38 cm more than the length of the rectangle, then find the ...
If the curved surface area and the radius of a cylinder are 880 cm2 and 10 cm, respectively, then find the volume (in cm3) of the ...
A circle has a chord of length 22 cm, and this chord is the diameter of the circle. Find the radius of the circle.
The sum of the volumes of cylinder A and B is 68376Â cm3 . The height of cylinder B is 3 cm more than the height of cylinder A. The curved su...
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