• 811 A sector of a circle of radius 5 cm is recast into a right circular cone of height 4 cm. What is the volume of the resulting cone? ›
• 812 A sum of money amounts to Tk 460 in 3 years and to Tk 500 in five years. Find the rate percent per amount ›
• 813 A trader sells his goods at a discount 20%. He still makes a profit of 25%. If he sells the goods at the marked price only, his profit will be: ›
• 814 A man spent ½ of his money and then lost ¼ of the remainder. He was left with Tk. 3,600. How much did he start with? ›
• 815 A motorist must complete 180-mile trip is 4 hours. If he averages 50 miles an hour for the first three hours of the trip , how fast must ( in terms of mile per hour ) he travel in the last hour ? ›
• 816 A person saves Tk. 5,000 in his bank account. If the bank gives 10% annual profit, how much will be his balance after 6 years? ›
• 817 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? ›
• 818 A sum of money amounts to Tk. 9800 after 5 years and Tk. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is: ›
• 819 A train 125m long passes a person, running at 8 km/hr in the same direction in which the train is going in 25 seconds. The speed of the train is: ›
• 820 A man starts climbing a 11m high wall at 5 pm. In each minute he climbs up im but slips down 50cm. At what time will he climb the wall? ›
• 821 A motorist travels to a place 150km away at an average speed of 50km and returns at 30km per hour. His average speed for the whole journey in km per hour is: ›
• 822 A person travels a certain distance at 3 km/hr and reaches 15 min late. If he travels at 4 km/hr, he reaches 15 min earlier. The distance he has to travel is ›
• 823 A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is: ›
• 824 A sum of money is to be distributed among A, B, C, D in the proportion of 5: 2: 4: 3. If C gets Tk. 1,000 more than D, what is B’s share? ›
• 825 A man takes 3 hours 45 minutes to row a boat 22.5 km downstream of a river and 2 hours 30 minutes to cover a distance of 10 km up stream. Find the speed of the river current in km/hr. ›
• 826 A natural number when increased by 12, equals 160 times reciprocal. The number is- ›
• 827 A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips? ›
• 828 A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Tk. 392, what was his profit? ›
• 829 A sum of money is to be distributed among A, B, C, D, in the proportion of 5: 2:4:3. If C gets Tk 1000 more than D, what is B’s share? ›
• 830 A 240m long train passed a pole in 24 seconds. How long will it take to pass a 650m long platform? ›
• 831 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 ›
• 832 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? ›
• 833 A cricket team has won 40 games out of 60 played. It has 32 more games to play. How many of these must the team win to make it record 70% win for the season? ›
• 834 A jar contains milk and water in the ratio 5: 1. If the quantity of milk is more than that of water by 8 liters, then what is the quantity of water? ›
• 835 A 25 km long causeway connects Saudi Arabia with which country? ›
• 836 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? ›
• 837 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? ›
• 838 A customer came to a shop and asked the shop manager to give a 20% discount on the listed price of a pen. Moreover, for every 10 pens purchased, he wanted two pens free of cost. The manager agreed to the customer’s offer because he could still make a profit of 20% on the cost price of a pen. What was the listed price of the pen? ›
• 839 A jar contains red balls and green balls in the ratio 3:1. If the jar contains only the two types of balls, which of the following cannot be the number of balls in the jar ? ›
• 840 A 250-meter-long train passes a person in 10 seconds, and the person was running at 5 km/h in the opposite direction of the train. What is the speed of the train in km/h? ›