For the following questions answer them individually
The value of $$\left(\frac{2}{5} of 7\frac{1}{2} \div 2\frac{1}{4}\right) + \left(5\frac{1}{2} \div 3\frac{2}{3} of 6\right) - 1\frac{1}{3} \times \frac{5}{8}$$ is:
An article was sold at $$\frac{11}{8}$$ times of its cost price. The profit per cent is:
In a transaction, the profit percentage is 48% of the cost. If the cost forth er increases by 20% but the selling price remains the same, how much is the decrease in the profit percentage?
A retailer gains 18% after allowing 12% discount on the cost price. If the cost price is ₹16,500, then what is the selling price?
A 243 m long irain running at 60 km/h takes 42 seconds to cross a tunnel. The length (in m) of the tunnel is:
A sum of money is put on compound interest for 2 years at 20%. It would fetch ₹964 more if the interest was payable half-yearly than if it was payable yearly. Find the sum.
The perimeter of a circular garden is 506 m. The cost (in ₹) of levelling it at ₹14/$$m^{2}$$ is:
(Take $$\pi = \frac{22}{7}$$)
The value of $$\frac{\frac{3}{7}\div\frac{3}{7}\times\frac{3}{7}}{\frac{3}{7}\div\frac{3}{7} of \frac{3}{7}} - \frac{9}{49}$$ is: