Comparing Quantities Test - 3

The price value of the share of a company increased at the rate of 15% in a year and decreased at the rate of 10% in the next year. What will be the value of share after 2 years if the present value of the share is Rs 2000?

A certain amount become Its 4 times in 6 year at simple interest. In how many year will it become 11 times itself?

It is given that Carbon - 14 decays at a constant rate and so it reduced to 30% in 1882 years. What will be the age of a three age of a treed in which carbon is only 9% of the original?

If the cost price of 10 apples is equal to the selling price of 8 apples. Find the gain or loss percent.

If a man were to sell his hand-watch for Rs 1680, he would lose 20 %. What must he sell it for to gain 25%?

By reducing the selling price of a bicycle by Rs 2000, a gain of 10 % turns into a loss of 10 %. Find the original selling price of a bicycle.

Jacob scored 8 marks more than what he did in the previous examination in which he had obtained 20 marks. Martin scored 16 marks more than he did in the previous examination in which he had scored 80 marks. Who had shown more improvement and by how much from other?

Two Laptops were sold at the same price. One was sold at 10% loss and the other was sold at 12% profit. What will be the overall profit/loss percentage in the transaction? (rounded up to two decimal)