Quantitative Aptitude - Arithmetic Ability Questions

What is the percentage decrease in the area of a triangle if its each side is halved?

A vendor buys chikoos at 15 for Rs 8 and then sells at 10 for Rs 6. What will be the result?

$32000 is invested at 10% for 2 years.Find the interest compounded Yearly

If cos 45° - sec 60° = x, then the value of x is

1st January 2018 was a Monday. Which of the following years will also start on a Monday?

The price of a movie ticket was increased in the ratio 9 : 10. What is the increase in the revenue (in Rs.) of the cinema hall, if the original fare was Rs 180 and 2200 tickets were sold.

Umar and Avinash started a partnership with investments of Rs. 10000 and Rs. 15000, respectively. But due to a financial emergency the latter had to withdraw his investment after 8 months. In what ratio should the profit of the first twelve months be shared among the duo?

In a computer game, a builder can build a wall in ten hours while a destroyer can demolish such a wall completely in fourteen hours. Both, the builder and the destroyer were initially set to work together on level ground. But after 7 hours the destroyer was taken out. What was the total time (in hrs) taken to build the wall ?