Question
If 14 (x - y)Â = 2744 and 14 (x +
y)Â = 537824, what is the value of x?Solution
14 (x - y)Â Â = 2744 = 143 x - y = 3 ----------------(1) 14 (x + y)Â Â = 537824 = 145 x + y = 5 ---------------(2) Adding (1) & (2) 2x = 3 + 5 = 8 x = 8/2 = 4
A street of width 15 metres surrounds from outside a rectangular garden whose measurement is 160 m × 140 m. The area of the path (in square metres) is<...
The circumference of a circle is 33 cm and the length of the rectangle is 8 times the radius of the circle. Find the area (in cm2) of the rec...
Find the approximate volume of a right circular cone having diameter 14 cm and height 3cm.(Take pie = 3.14.)

The volume of a solid cube is 2197 m3. If whole cube is to be painted at a rate of Rs. 3.5 per m2, then what will be the cost of p...
The ratio of the height of a room and its semi-perimeter is 2:5. The cost of applying 50cm wide paper at the rate of Rs 8/meter on the remaining walls e...
In a rectangular floor of length and breadth of 20 metres and 4 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the co...
A hollow cylindrical pipe is made of iron. The difference between the outer and inner curved surface area is 176 cm². The height of the pipe is 28 cm, ...
A right circular cylinder having total surface area of 18480 cm2 is immersed in a vessel completely filled with water. If the height of the c...
In a rectangular floor of length and breadth of 19 metres and 6 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the co...