A train covers a distance of 275 km in \(2\dfrac{1}{2}\) and a half hours with a uniform speed. The time taken to cover a distance of 440 km with the same speed is:
A sum of Rs. 17,200 is lent out at simple interest in two parts for two years at 8% and 10% p.a., respectively. If the total interest received after two years is Rs. 3,008, then the money lent at 8% rate is:
The radii of the circular ends of a frustum of a cone are 20 cm and 13 cm and its height is 12 cm. What is the capacity (in litres) of the frustum (correct to one decimal place)? (take \( \pi = \frac{22}{7} \))
The value of \(\frac{2 - \left(\tfrac{6}{7}\ \text{of}\ 21 + 5.25\right)}{\tfrac{3}{4}\ \text{of}\ (15.8 - 3.4) + 5 \times 2.39}\)