If 3a - (3/a) - 3 = 0, then what is the value of $a^{3} -\left(\frac{1}{a^{3}}\right)+2$?
1). 0
2). 2
3). 4
4). 6
If $\left(\frac{x}{y}\right)^{a-4}$ = $\left(\frac{y}{x}\right)^{2a-5} $, then what is the relation between x and y?
1). x > y
2). Cannot be determined
3). x < y
4). x = y
A train travels 20% faster than a car. Both start from point A at the same time and reach point B, 180 km away at the same time. On the way the train takes 30 minutes for stopping at the stations. What is the speed (in km/hr) of the train?
1). 56
2). 66
3). 72
4). 80
If the price of onion increases from Rs 24/kg to Rs 36/kg, then by what percentage a household should decrease the consumption of onion so that expenditure remains same?
1). 25
2). 33.33
3). 50
4). 20
Mohit buys an old bicycle for Rs 2700 and spends Rs 500 on its repairs. If he sells the bicycle for Rs 3520, then what is his profit percentage?
1). 10
2). 12.5
3). 15
4). 20