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• 4021 A box is made in the form of a cube. If a second cubical box his inside dimensions three times those of the first box, how many times as much does the second box contain? Math ›
• 4022 A box is made in the form of a cube. If a second cubical box has inside dimensions three times those of the first box, how many times as much does the second box contain? Math ›
• 4023 A box contains 5 pink, 3 green and 2 yellow balls. Three balls are picked up randomly. What is the probability that none of the ball drawn is green? Math ›
• 4024 A box contains 4 tennis ball, 6 season and 8 dues balls, 3 balls are randomly drawn from the box. What is the probability that the balls are different? Math ›
• 4025 A box contains 200 pens of which 25% are red and the rest are black. You sold a certain number of pens, of which 60% were black. You found that among the remaining pens, only 20% are red. How many pens did you sell? Math ›
• 4026 A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is Math ›
• 4027 A box contains 12 poles and 7 pieces of net. Each piece of net weights 0.2gm, each pole weighs 1.1gm. The box and its contents together weigh 16.25gm. How much does the empty box weigh? Math ›
• 4028 A box contains 12 poles and 7 pieces of net. Each piece of net weighs 0.2gm, each pole weighs 1.1gm. The box and its contents together weigh 16.25gm. How much does the empty box weigh? Math ›
• 4029 A book sells for TK. 65. This price gives the seller a profit 30% on his cost. What will bi the new selling price if he cuts his profit to 10% of the costs ? ? Math ›
• 4030 A boat travel with a speed of 10 km/hr in still water. If the speed of the stream is 3 km/hr then find time taken by boat to travel 52 km downstream. Math ›
• 4031 A boat takes 4 hours to cover a certain distance running downstream, while it requires 8 hours 48 minutes to cover the same distance. Find the ratio between the speed of the current and the speed of the boat? Math ›
• 4032 A boat takes 19 hours to travel downstream from point A to point B and coming back to a point C midway between A and B. If the speed of the stream is 4 km/hr and the speed of the boat in still water is 14 km/hr, what is the distance between A and B? Math ›
• 4033 A boat sailing against a stream of river tanks 6 hours to travel 24km, while sailing with the stream it takes 4 hours to travel the same distance. What is the speed of the stream? Math ›
• 4034 A boat can travel with a specd of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream. Math ›
• 4035 A boat can travel from point A to point B and return back to point A in 9 hours. Speed of the boat in still water is 8 km/h and the speed of the stream is 4 km/h. Find the distance between A and B Math ›
• 4036 A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets? Math ›
• 4037 A batsman has a certain average of runs for 12 innings. In the 13th inning, he scores 96 runs thereby increasing his average by 5 runs. What is his average after the 13 innings? Math ›
• 4038 A bank offers 5% interest compounded half yearly. A customer deposits Tk. 1,600 each on 1st January and 15 July of a year. At the end of the year, the amount he would have gained by the way of interest is Math ›
• 4039 A bag contains an equal number of one rupee, 50 paisa and 25 paisa coins. If the total value of Tk. 35, how many coins of each type are there? Math ›
• 4040 A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is: Math ›
• 4041 A bag contains 30 balls numbered 1 to 30. Two balls are drawn at random. What is the probability that the balls drawn contain a number which is multiple of 4 or 6 but not a multiple of both? Math ›
• 4042 A bag contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the bag if at least one ball is to be included in the draw? Math ›
• 4043 A bag contains 2 red, 3 green, and 2 blue balls. If two balls are drawn at random, what is the probability that none of the balls drawn is blue? Math ›
• 4044 A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue? Math ›
• 4045 A bag and a book costs BDT 1,100. If the bag costs 1,000 more than the book, how much does the book cost? Math ›
• 4046 A and B together can do a piece of work in 40 days. A having worked for 20 days, B finishes the remaining work alone in 60 days. In how many days shall B finish the whole work alone? Math ›
• 4047 A and B together can complete a piece of work in 12 days, B and C can do it in 20 days and C and A can do it in 15 days. A, B and C together can complete it in Math ›
• 4048 A and B invest in business in the ratio 3: 2. If 5% of the total profit goes to charity and A’s share is Tk. 855, the total profit is: Math ›
• 4049 A and B can do a work in 12 days. B can do the same work in 18 days. In how many days A can complete the 2/3 of the same work? Math ›
• 4050 A and B are partners in a business. A contributes ¼ of the capital for 15 months and B receives 2/3 of the profit. Find for how long B’s money was used. Math ›