Bank Math

What is the slope of a line perpendicular to the line whose equation is 20x - 2y = 6? 

একজন কর্মচারির বেতন ২০% বৃদ্ধির পর সাপ্তাহিক ১৮০ টাকা পেল। তার আগের সাপ্তাহিক বেতন কত ছিল?

A book sells for Tk. 65. This price gives the seller a profit 30% on his cost. What will be the new selling price if he cuts his profit to 10% of the costs?

If a + (1/a) = 3, what is a³ + (1/a³)?

A 60 litre mixture of sugar and water contains sugar and water in the ratio 2 : 3. How many litres of the mixture should be replaced by sugar so that the ratio of sugar and water becomes 1 : 1?

Ahmed sold a T-shirt TK. 810 and gained 8%. How much did he purchase it for?

A water filter can be filled with 11 jugs of capacity 1.5 liters each. How many jugs are required to fill the same filter, if the capacity of the jug is 1.1 liters?

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

A number when divided by 3 leaves a remainder 1. When the quotient is divided by 2, it leaves a remainder 1. What will be the remainder when the number is divided by 6?

A mixture of 20 kg of spirit and water contains 10% water. How much water must be added to mixture to raise the percentage of water to 25%

In a mixture, the ratio of the milk and water is 6: 5. When 22 liter mixture is replaced by water, the ratio becomes 9: 13. What is the quantity of water after replacement?

A 40-meter long rope is cut into two unequal pieces. If one piece is 18 meter longer than the other, what is the length (in meter) of the shorter piece?

If the interest of Tk. H of H% in 4 years is Tk.H, Then H = ?

The values of p for equation 2x² - 4x + p = 0 to have real roots is:

A speed of 14 meters per second is the same as -

In a set, there are 17 consecutive integers with a maximum value of 8. What is the average of the set?

A and B together can do a piece of work in 40 days. A having worked for 20 days, B finishes the remaining work alone in 60 days. In How many days shall B finish the whole work alone?

Of three consecutive even numbers, the sum of the 1st and 2nd is 166. The sum of the 2nd and 3rd is 170 and the sum of the 3rd and twice of 1st is 250. The second number is -

A certain machine produces 1,000 units of product P per hour. Working continuously at this constant rate, this machine will produce how many units of product P in 7 days?

I walk a certain distance and ride back taking a total time of 37 minutes. I could walk both way 55 minutes. How long would it take me to ride both ways?