১১৪৭১
A set has exactly five consecutive positive integers starting with 1. What is the percentage decrease in the average of the numbers when the greatest one of the numbers is removed from the set?
উত্তর
16.66
১১৪৭৩
The present ages of M and N are in the ratio of 6 : 4. Five years ago, their ages were in the ratio of 5: 3. How old is M now?
উত্তর
30
১১৪৭৪
A total of x feet of fencing is to form three sides of a rectangular yard. What is the maximum possible area of the yard in terms of x?
উত্তর
x2/8
১১৪৭৫
The areas of two spheres are in the ratio 1 : 4. The ratio of their volumes is -
উত্তর
1 : 8
১১৪৭৬
Mr. Zahir bought a 1-year BDT 10,000 certificate of deposit that paid interest at an annual rate of 8 percent compounded semiannually. What was the total amount of interest paid on this certificate at maturity?
উত্তর
816
১১৪৭৭
40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is $390. The annual income of each executive is $420. What is the average annual income of all the employees in the factory together?
উত্তর
408
১১৪৭৮
If 0 ≤ x ≤ 4, and y < 12, which of the following cannot be the value of xy?
উত্তর
48
১১৪৭৯
Group a has 20 members and Group B has 28. If a total of 42 people belong to the two groups, how many people belong to both groups?
উত্তর
6
১১৪৮০
If a certain vase contains only roses and tulips, how many tulips are there in the vase? i. The number of roses in the vases is 4 times the number of tulips in the vase. ii. There is total of 20 flowers in the vase.
উত্তর
5