A bag contains 3 red and 4 blue pens, another contains 2 red and 3 blu..
A bag contains 3 red and 4 blue pens, another contains 2 red and 3 blue pens. One of the bags is chosen at random and two pens are drawn from it. Find the probability that the two pens are blue. => 4 1 7 0 or 3 1 0 or 2 7 or 4 1 1 4 0..
Tony had 5 red socks, 3 blue socks, and 2 white socks in a drawer. He ..
Tony had 5 red socks, 3 blue socks, and 2 white socks in a drawer. He pulled out 2 socks at random from the drawer. What is the probability that one sock is blue and the other is red? => 1 3 or 1 18 or 1 2 or 1 6..
A bag contains 3 white, 2 black and 4 red balls. What is the probabili..
A bag contains 3 white, 2 black and 4 red balls. What is the probability of 3 balls being red and 2 balls being white, if 5 balls are drawn at random? => 3 C 1 × 3 C 3 9 C 5 or 4 C 3 9 C 4 or 4 C 2 × 4 C 2 9 C 5 or 4 C 3 × 3 C 2 9 C..
James plucked 4 violet flowers and n more red flowers than violet flow..
James plucked 4 violet flowers and n more red flowers than violet flowers. How many red flowers did he pluck in all? => 4 + n or 4 - n or 4 ÷ n or 4 × n..
Brian plucked 5 violet flowers and n more red flowers than violet flow..
Brian plucked 5 violet flowers and n more red flowers than violet flowers. How many red flowers did he pluck in all? => 5 × n or 5 - n or 5 ÷ n or 5 + n..
Jessica dropped a marble at random on the tiles shown. Find the probab..
Jessica dropped a marble at random on the tiles shown. Find the probability of the stone landing on a red tile. => 1 2 0 or 1 2 5 or 1 4 or 1 5..
The base of a solid is a circle of radius 2 units. If each cross sect..
The base of a solid is a circle of radius 2 units. If each cross section of the solid perpendicular to the diameter AB of it is an equilateral triangle, then find the volume of the solid . => 3 2 3 3 or 1 6 2 3 or 8 3 or 1 6 3 3..
Jim had a bag of marbles. There were 20 marbles in the bag: 6 red, 5 o..
Jim had a bag of marbles. There were 20 marbles in the bag: 6 red, 5 orange, 3 brown, 2 yellow, and 4 blue. Without looking, he chose a marble, recorded the color, and returned the marble to the bag. He performed this experiment 100 times and found that he chose a red marble 22 ..
What is the volume of a solid bounded by the planes x = 1,x = 3 whose ..
What is the volume of a solid bounded by the planes x = 1, x = 3 whose area of cross section perpendicular to x -axis is proportional to ln x where x is the distance of the cross section from the origin, and whose area of cross section is ln 8 square units at x = 2 ? =..
Solve the proportion 5x = x+16 using the cross product property.
Solve the proportion 5 x = x + 1 6 using the cross product property. => 6, - 5 or 12, - 10 or - 6, 5 or - 12, 10..
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