The banker's discount on a bill due $1$ year $8$ months hence is ₹ $50$ and the true discount on the same sum at the same percent is ₹ $45$. The rate percent is :

Tarun bought a T.V with $20\%$ discount on the labelled price. If he had bought it with $25\%$ discount, he would have saved $₹500$. At what price did he buy the T.V.? $₹8,000$ $₹10,000$ $₹12,000$ $₹16,000$

Ashok's age is $\left (\frac{1}{6} \right)^{th}$ of his father's age. The father's age will be twice of Kamal's age after $10$ years. If Kamal's eighth birthday was celebrated $2$ years before, what is Ashok's present age ? $24$ years $30$ years $\frac{20}{3}$ years None