if $x^{3} + 2x^{2} - 5x + k$ is divisible by x + 1, then what is the value of k?
1). -6
2). -1
3). 0
4). 6
A person lent Rs 10000 to B for 3 years and Rs 6000 to C for 4 years on simple interest at same rate of interest and received Rs 5400 in all from both of them as interest. What is the rate of interest (in %)?
1). 10
2). 12.5
3). 15
4). 20
If I walk at $\frac{7}{6}$ of my usual speed, then I reach my office 15 minutes early. What is the usual time taken (in minutes) by me to reach the office?
1). 60
2). 75
3). 90
4). 105
a% of b + b% of a = ______
1). 2a% of b
2). 2a% of 2b
3). 2a% of 2a
4). 2b% of 2b
70% of the cost price of a article is equal to the 40% of its selling price. What is the profit or loss percentage?
1). 63% loss
2). 70% loss
3). 75% profit
4). 80% profit