The value of a flat worth Rs. 500000 is depreciating, at the rate of 10% p.a. In how many years will it' value be reduced to Rs. 364500? `3\ y e a r s` b. `4\ y e a r s` c. `5\ y e a r s` d. `6\ y e a r s`

Given that carbon-14 decays at a constant rate in such a way that it reduces to 50% in 5568 years, find the age of an old wooden piece in which the carbon is only 12.5% of the original. 15836\ y e a r s b. 16668\ y e a r s c. 16704\ y e a r s d. 17552\ y e a r s

Correct Reactivity order of E.S.R :

If s and r are integers, 8ltrlt40 , and (s)/(r)=(4)/(7) , how many possible values are there for s?

The dimension of a rectangular box are in the ratio 2:3:4 and the difference between the cost of covering it with sheet of paper at the rate of R s .4\ a n d\ R s .4.50\ p e r\ s q u a r e\ m e t e r is R s .416. Find the dimensions of the box.

The floor of a rectangular hall has a perimeter of 250\ mdot Its height is 6\ mdot Find the cost of painting its four walls (including doors, etc.) at the rate of \ R s .6\ p e r\ s q u a r e\ m e t r edot

The floor of a rectangular hall has a perimeter of 250\ mdot Its height is 6\ mdot Find the cost of painting its four walls (including doors, etc.) at the rate of \ R s .6\ p e r\ s q u a r e\ m e t r edot

The cost of constructing a wall 8 m long, 4 m high and 20 cm thick at the rate of 50R s\ p e r\ m^3 is Rs. 16 (b) Rs. 80 (c) Rs. 160 (d) Rs. 320

The cost of fencing a circular field at the rate of Rs 24 per metre is Rs 5280. The field is to be ploughed at the rate of R s\ 0. 50\ p e r\ m^2 . Find the cost of ploughing the field .

The total cost of flooring a room at Rs. 85\ p e r\ m^2i s\ R s .5100 . If the length of the room is 8 metres, find its breadth.

A swimming pools is 20\ m in length, 15\ m\ in breadth, and 4\ m in depth. Find the cost of cementing its floor and walls at the rate of R s .12\ p e r\ s q u a r e\ m e t r edot