Rewa has some hens and some goats. If the total number of animal heads is 100 and the total number of animal feet is 348, then what is the total number of goats with Rewa? 

The value of is

If then find the value of x?

The simple interest on a sum  of money is of the sum. If the number of years is numerically half the rate percent per annum, then the rate percent per annum is 

Direction : What value should come in place question mark(?) in the following questions?

4 × 5² – 3² × 7 + 6²=?+24

The volume of a solid right circular cone is 600 π cm³, and the diameter of its base is 30 cm. The total surface area (in cm²) of the cone is:

If the area of a circle is 9π sq.cm then it circumference is

Find the value of k in