১২৫৫১
Out of 10 persons working on a project, 4 are graduated. If 3 are selected, what is the probability that there is at least one graduate among them?
উত্তর
5/6
১২৫৫২
A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled?
উত্তর
7.2 hrs
১২৫৫৩
The average weight of 16 boys in a class is 50.25kg and that of the remaining 8 boys is 45.15kg. Find the average weight of all the boys in the class.
উত্তর
48.55kg
১২৫৫৪
If 12 equally priced melons cost a total of $9.60, then what is the cost of 9 of these melons?
উত্তর
$7.20
১২৫৫৫
If 2a = 3b = 4c = 72, then what is the average (arithmetic mean) of a, b and c?
উত্তর
26
১২৫৫৬
Jenny notices a consistent, increasing pattern in the number of geese she sees flying over her house each day. If she sees 5 geese on Monday, 8 geese on Tuesday, 11 geese on Wednesday and 14 geese on Thursday and the next week starts on Sunday, on which of the following day of the next week will she see a prime number of geese if the pattern continues?
উত্তর
Sunday
১২৫৫৭
Set : B contains only positive, even integers. Which of the following could be the median of set B?
উত্তর
1
১২৫৫৮
A car manufacturer has 2,992 forklifts, which is approximately one forklift for every 48.9 employees. Which of the following is the closest approximation in thousands, of the number of employees employed by the manufacturer?
উত্তর
150
১২৫৫৯
In how many different ways can 3 identical green shirts and 3 identical red shirts be distributed among 6 children such that each child receives a shirt?
উত্তর
20
১২৫৬০
The volume V of a right circular cylinder is V = πr2h where r is the radius of the base and h is the height of the cylinder. If the volume of a right circular cylinder is 45π and its height is 5, what is the circumference of its base?
উত্তর
6π