For the following questions answer them individually
A woman invest Rs. 200 at the state of each year at 5% compound interest per annum. How much will her investment be at end of the $$2^{nd}$$ year?
The surface area (in sq.cm.) of a sphere with radius 3.5 cm is: (Take $$\pi = \frac{22}{7}$$)
Mr. Sathya invested money in FD. How much will he get on maturity, if Rs. 14,500 is invested at 20% per annum compound interest for 6 months, compounded quarterly?
Find out the two signs to be interchanged for making the following equation correct:
$$5 + 3 \times 8 - 12 \div 4 = 3$$