For the following questions answer them individually
If $$21 \tan \theta = 20$$, then $$(1 + \sin \theta + \cos \theta) : (1 - \sin \theta + \cos \theta) = ?$$
If A is 48% more than B and C is 60%less than the sum of A and B, then A is what percentage more than C? (Correct to one decimalplace.)
A field is in the form of a circle. The cost of fencing around it at ₹12 per metre is ₹2,640. Whatis the area (in m$$^2$$) of the field? (Take $$\pi = \frac{22}{7}$$)
The sides AB, BC and AC of a $$\triangle$$ABC are 12 cm, 8 cm and 10 cm respectively. A circle is inscribed in the triangle touching AB, BC and AC at D, E and F, respectively. The difference between the lengths of AD and CE is:
The value of $$\frac{\frac{1}{3} + \left[4\frac{3}{4} - \left(3\frac{1}{6} - 2\frac{1}{3}\right)\right]}{\left(\frac{1}{5} of \frac{1}{5} \div \frac{1}{5}\right)\div \left(\frac{1}{5} \div \frac{1}{5} \times \frac{1}{5}\right)}$$ lies between:
Working 7 hours a day, 18 persons can complete a certain work in 32 days. In how many days would 14 persons complete the same work, working 8 hours a day?
The curved surface area of a right circular cone is 156 $$\pi$$ and the radius of its base is 12 cm. What is the volume of the cone, in cm$$^3$$ ?
If $$x = 5.51, y = 5.52$$ and $$z = 5.57$$, then what is the value of $$x^3 + y^3 + z^3 - 3xyz$$?
A trader buys an article at 80% of its marked price and sells it at 10% discount on its marked price. His percentage profit is: