Quantitative Aptitude - Arithmetic Ability Questions

An investor invested his saving in the stock market. The value of his investments increased by 12% and 9% in the first year and the second year respectively. If the value of his investments after two years became Rs 97,664 then how much had he invested (in Rs)?

The sum of three numbers is 162. If the ratio of the first number to the second number is 5 : 7 and that of the second number to the third number is 5 :3, then what is the second number?

If in the population of a town there is an increase of 44% in the first year and 75% in the second year, then what is the average rate of increase in the population?

Find the LCM of 3.2, 2.72, 1.28 and 1.44

A Rs 750 tin of cheese is offered at 8% discount and a Rs 1,250 tin of butter at 20% discount. If we buy 5 tins of cheese and 3 tins of butter, what is the effective discount we get (in %)?

If Cosec θ = 17/8, then what is the value of Cos θ?

After a discount of 23% an article is sold for Rs 1848. What is the marked price (in Rs) of the article?

In what time will a train, 60 metres long, running at the rate of 36 km/hr pass a telegraph post?