৮৩০১
If (a - 18)2 + (b - 12)2 + (c - 6)2 = 0 then, What is the value of (a + b + c)1/2 = ?
উত্তর
6
৮৩০২
A square garden is surrounded by a path of uniform width 2 meters. If the area of the path is 48 square meters, find the side length of the garden.
উত্তর
4 meters
৮৩০৪
A train 150 meters long passes a signal post in 15 seconds. How long will it take to pass a bridge that is 450 meters long?
উত্তর
1 minute
৮৩০৫
A bag contains 7 green balls, 8 blue balls, and 5 yellow balls. One ball is drawn at random. What is the probability that the ball drawn is neither green nor yellow?
উত্তর
2/5
৮৩০৬
How many terms are there in the geometric progression, 3, 6, 12, 24, …, 1536
উত্তর
10
৮৩০৮
Two pipes A and B can fill the tank in 24 and 36 minutes, respectively. Both the pipes are opened together. After how many minutes should the pipe B be turned off, so that the tank be fill in 18 minutes?
উত্তর
9 minutes
৮৩১০
In how many ways can 5 people from a group of 8 people be seated around a circular table?
উত্তর
1344