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1. Let the sum of the ages of Harish’s sons be x. 2. Harish’s age is 8x. 3. After 8 years, 8x + 8 = 2(x + 16). 4. Solving gives x = 4, so Harish’s age is 32.
Perimeter of a square and circumference of a circle are in the ratio 15:11, respectively. If area of the square is 225 cm2, then find the rad...
The sides of a triangle are in the ratio 5:7:12, and its perimeter is 144 cm. What is the difference in length between the longest and the shortest side?
A hemispherical bowl of internal radius 9 cm, contains a liquid. This liquid is to be filled into small cylindrical bottles of diameter 3 cm and height ...
A right circular cylinder having total surface area of 17710 cm2 is immersed in a vessel completely filled with water. If the height of the c...
A solid sphere has a radius of 7 cm. A hemisphere is removed from the sphere. What is the volume of the remaining part of the sphere?
The perimeter of a square field is 16 cm more than the perimeter of a rectangle. The length of the rectangle is 72 cm which is 300% of its width. If a s...
The area of a rectangle is 1/2 that of a square. The length of the rectangle is 20 cm and the breadth of the rectangle is 3/2 times that of the side of ...
If 'Head' appears consecutively in the first three tosses of a fair/unbiased coin, what is the probability of 'Head' appearing in the fourth toss also?
A tank whose length, width and height are 19 metres, 14 metres and 10 metres respectively is completely filled with juice. If the juice costs Rs.5/m
Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
