For the following questions answer them individually
If $$\cosec 3\theta = \sec(20^\circ + 2\theta), then \theta$$ is equal to:
A retailer purchased radiosets at the rate of Rs. 400 each from a wholesaler. He raised the price by 30% and then allowed a discount of 8% on each set. His profit will be
The radius of a hemisphere is 21 cm, what is its volume? (Take π = 22/7)
The compound interest on =1,800 at 10% per annum for a certain period of time is 378. Find the time in years.
The value of $$3.8 - (4.2 \div 0.7 \times 3) + 5 \times 2 \div 0.5$$ is: