Bank Math

A tap can fill a tank in 6 hours. After half the tank is filled three more similar taps are opened. What is the total time taken to fill the tank completely? 

85% of a number is added to 24, the result is the same number. Find the number?

If secθ + tanθ = x, then tanθ is

Reza sells 500 shares in a company via a stock broker who charges a flat Tk. 20 commission rate on all transactions under Tk. 1000. His bank account is credited with Tk. 692 from the sale of the shares. What price were his shares sold at?

A pump can fill a tank with water in 2 hours. Because of a leak, it took (7/3) hours to fill the tank. The leak can drain all the water of the tank in:

A ferry can travel twice as fast when empty as when it is full. It travels 20 miles with full load, spends 1 hour for unloading and returns to its original post empty. It took 11 hours to complete the journey. What is the speed of the ferry when it is empty?

The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:

If 738A6A is divisible by 11, then the value of A is:

Mamun bought 50 shares at Tk. 60, and 2 months later, he purchased 25 shares at Tk 56, at what price should he purchase 25 additional shares in order to have an average price of Tk 58 per share?

The price of a loaf of bread was increased by 20%. How many that used to buy 300 loaves?

If a = m - 1, then which of the following is true when m = 1/2

The average of three numbers is P. If two numbers of them are R and S. What is the 3^rd number?

Which is the area of this triangle?

A fruit salad is made by mixing 3 kgs of mango costing Tk 120 per kg and 2 kgs of papaya costing Tk 100 per kg and 2 kgs of grapes costing Tk 140 per kg. At what price (in Taka) per kg should the mixture be sold to make profit of 25 percent?

In a sequence of 8 consecutive integers, how much greater is the sum of the last four integers than the sum of the first four integers?

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

The income of ‘A’ is 20% higher than that of ‘B’. The income of ‘B’ is 25% less than of ‘C’. What percent less is A’s income from C’s income?

A and B go cycling in the same direction with speeds of 6 km/hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively. What is the speed of the car?

A driver of an auto rickshaw sees a lorry 60 meters ahead of him. After 30 seconds the lorry is 90 meters behind. If the speed of the auto rickshaw is 38 km/h, then what is the speed of the lorry?

There are 10 true false questions in an examination. These questions can be answered in -