Bank Math

Which of the following is the largest fraction?

If x = 12, which of the following has the least value? 

If the diameter of a circle is decreased by 100%, by what percentage is the area of the circle decreased?

While working 7 hour a day, A alone can complete a piece of work in 6 days and B alone in 8 days . In what time would they complete it together, 8 hour a day?

3/8 of all applicants for a job are male. 3/4 of all applicants are rejected in the first round including 2/3 of all male applicants. What fraction of applicants remaining after the first round are male?

By what percentage above the cost price, a fan should be sold if a shopkeeper wants to make a profit of Tk. 500 and the marked price of the article is Tk 6000 which is 50% above the cost price?

Of the 50 researcher in a workgroup 40% will be assigned to team A and the remaining 60% to team B. However 70% of the researcher prefers team A and 30% prefers team B. What is the least possible number of researchers who will not be assigned to the team they prefer?

The value of a fraction is 2/5. If the numerator decreased by 2 and the denominator increased by 1, the resulting fraction is equivalent to 1/4. Find the numerator of the original fraction.

If k is an integer, what is the smallest possible value of k such that 1,040k is the square of an integer?

In covering a certain distance, the speed of A and B are in the ratio of 3 : 4. A takes 30 minutes more than B to reach the destination. The time taken by A to reach the destination is:

সবচেয়ে বড় সংখ্যা কোনটি?

Nikki is 25% more efficient than Tina. Tina alone can build a craft in 20 days. Find the number of days taken by Nikki to finish the same piece of work?

In a class of 120 students, 70 percent can speak only Bengali and the rest can speak English. If 25 percent of those in the class who can speak English can also speak Bengali, how many of the students in the class can speak Bengali?

If 2^{x + 1} = 16, then x = ?

What percentage of numbers from 1 to 70 has 1 or 9 in the unit digits?

A motor-cycle covers 40 Km with a speed of 20 km/hr. Find the speed of the motor- cycle for the next 40 km journey so that the average speed of the whole journey will be 30 km/hr.

একটি সামন্তরিকের দুইটি সন্নিহিত বাহুর দৈর্ঘ্য যথাক্রমে 7 সেন্টিমিটার এবং 5 সেন্টিমিটার হলে, এর পরিসীমার অর্ধেক কত?

Kalam has three daughters; Shaila, Meena and Tina. Three years ago, when Kalam was twice as old as Tina, he was 30 years older than Meena. Now he is 47 years older than Shaila. In 4 years, Shaila will be half as old as Tina. What is the sum of the current ages of Kalam and his three daughters?

Rahim can hammer 20 nails in 6 minutes. Charlie can do the same job in only 5 minutes. How long will it take them to hammer 22 nails if Rahim hammers the first 5 nails, then Charlie hammers for 3 minutes and finally Rahim finished the job?

The distance from the centre of a circle of radius 5 cm to a chord of lengh 8 cm is-