A takes twice as much time as B or thrice as much time as C to finish a piece of work Working together, they can finis the work Working together , they can finish teh work in 2 days . B can do the work alone in -
The percentage profit earned by selling an article for TK. 1920 is equal to the percentage loss interest by selling the same article for Tk 1280 . At what price should the article be sold to make 25% profit?
A person travels a certain distance at 3 km/hr and reaches 15 mi late. If he travels at 4 km/hr reaches 15 min late. If he travels at 4 km/hr reaches 15 min earlier. The distance he has to travel is -
A boy travelled from the home to the college at the rate of 25 km/hr and walked back at the rate of 4 km/hr. If the whole journey took 5 hours 48 minutes, Find the distance of the college from the home?
(1372 +959)÷292 ×19.003=?
Two men and three women can repair a bridge in 10 days while three men and two women can to same work in 8 days. If two men and one woman are used to finish this work , in how many days they will complete it?
A boatman takes twice as long to go a distance upstream as to travel the same distance downstream . What is the ratio of the speed of the boatman (in still water) and the current?
Speed of a boat in standing water is 9 km/hr and the speed of the stream is 1.5 km/hr. A man rows to a place at a distance of 105 km and comes back to the starting point .The total time taken by him is -
A, B and C invested capitals in the ratio of 4 : 6 : 9 At the end of the business term, they received the profit in the ratio of 2 : 3 : 5. Find the ratio of their time for which they contributed their capitals.
A trader marks his goods at 20% above the cost price . If he allows a discount of 5% for his down payment, his profit percent for such a transaction is -
If a =3/2, then 1+a+1-1=?
Some money is divided amongst three workers A ,B and C such that 5 times A's share is equal to 12 times B's share which is equal to 6 times C's share. The ratio between the shares of A ,B and C is?
At simple interest of 5% , 6% and 8% for three consecutive years, the interest earned is TK. 760. Find the principle?
If the compound interest of a certain sum of money for two successive years be TK. 225 and Tk. 238.50 . What is the rate of interest per annum?
A bag cotains 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 -
A word consists of 9 letters; 5 consonants and 4 vowels. There letters are chosen at random. What is the probability that more than one vowel will be selected?
The ages of X and Y are in the proportion of 6:5 and total of their ages is 44 years. The proportion of their ages after 8 years will be
A rectangular field is to be fenced on three sides leaving a side of 20 m uncovered. If the area of the field is 680 m2 ,how many meters of fencing will be required?
A number is decreased by 10% and then increased by 10% .The number so obtained is 10 less than the original number. What was the original number?
A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottoms. If the cistern is full, the leak will empty it in ?
A sum of TK. 427 is to be divided among A ,B and C such that 3 times A's share , 4 times B's share and 7 times C's share are all equak The share of C is :
A and B invest in a 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 :
Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:
The volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is 12.8 m2 .Find the breadth of the wall.