The sum of a non-zero number and 4 times its reciprocal is $\frac{17}{2}$. What is the number?
1). 8
2). 12
3). 16
4). 4
If a + b = 8 and ab = 15, then what is the value of a3 + b3?
1). 58
2). 152
3). 124
4). 260
If $7x - \left(\frac{3}{2}\right) * (4x - 9)$ = 6.5, then the value of x is?
1). 7
2). 20
3). -7
4). -20
What is the difference (in Rs) between the compound interests on Rs. 1000 for 1 year at 10% per annum compounded yearly and half-yearly?
1). 1.5
2). 0.5
3). 2.5
4). 3.5
To travel 720 km, a Express train takes 6 hours more than Duronto. If however, the speed of the Express train is doubled, it takes 2 hours less than Duronto. The speed of Duronto (in km/hr) is?
1). 60
2). 72
3). 66
4). 78