If the perimeter of a certain rectangle is 76 m and its area is 360 m2 , then what is the length of its shortest side ?
The simple interest received on a sum of money at the end of 10 years is two times of the principle. At the same rate of interest, what would be the ratio of principal and compound interest received at the end of two years?
A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4 from the first five questions . The number of choices available to him is .
For what value of x is 82x-4=16x?
Three dice are thrown together . Find the probability of getting a total of at least 6 ?
In a college Rahim scored 80 marks out of 150 in History and 95 marks out of 120 in English . If he wants to score 70% marks in 3 subjects, find the minimum marks she should score in Geography out of 100.
If x = 1 +2 and y=1 -2, find the value of (x2+y2) .
x can do a piece of work in 20 days and Y can do the 1/7th of the same work in 5 days. In how many days together they can complete the 11/14th of the total work?
The circumference of the circle and teh perimeter of the square is equal and the ratio between the diameter of the circle and the side of the square is 7 :11 . What is the area of the circle ?
The average weight of teacher is also included, then the average weight is increased by 200 grams. Find the weight of the teacher?
A train can cross another train of equal length coming form the opposite direction with the speed of 108 km/h in 3 minutes . The speed of the other train is 90 km/h. Find the length of the train .
A can complete a piece of work in 12 days, A, B and C can complete the work in 6 days, Efficiency of B is 0.5 times the efficiency of In how many days C can complete the works= alone?
A shopkeeper sold and item at 20% profit and another item at 10% loss. If the cost price of both the items is same, find overall profit percent.
8 males and 6 females can do a piece of work in 5 days, 5 males and 6 females can complete the same work in 7 days . How many days will a female take to do the job, if she works alone?
The area of lawn is 460 m2. If the length is 15 percent more than the breadth of the rectangular field What is the length of the field?
A boat can travel form 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.
A 10% monthly salary increase resulted in a TK. 9000 per year increase in salary for an employee. What was his monthly salary before the increase?
When a certain number is divided by 7 ,the remainder is 0. if the remainder is not 0 when the number is not 0 when the number is divided by 14 , then the remainder must be -
A mixture of 20 kg of sprit and water contains 10% water. How much water must she added to mixture to raise the percentage of water to 25%
X and Y start a business by investing a certain amount in the ratio 9: 16 . Both of them invest for an equal period of time . At the end of the term , X's share of profit is what per cent less than that of Y?
The average attendance of a college for the first three days of a week is 325 and first four days is 320. How many were present on the fourth day?
TK. 355 has been divided among A, B,C in such a way that a had TK. 20 more than B and C had Tk. 15 more than B and C had Tk. 15 more than A How much was C's share?
If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
By what percentage above the cost price ,a fan should be sold if a shopkeeper wants to make a profit of Tk. 500 and the marked price of the article is TK. 6000 which is 50% above the cost price ?
Out of two numbers, 4 times the smaller one is less than 3 times the larger one by 5, if the sum of the numbers is larger than 6 times their difference by 6, find the two numbers
The sum of the squares of these numbers is 532 and the ratio of the first and the ratio of the first and the second as also of the second and the third is 3 : 2. Then the first number is -
Pipe P can fill and empty tank in 4 hours but pipe Q can completely empty the same tank in 8 hours. But the pipes were opened alternately after every two hours starting with pipe P then in how many hours, the tank was completely filled ?
The average age of A, B And C sis 30 years. If the difference between B's age and A's age is same as the difference between C's age and B's age . If D is 40 years older than B then what is the sum of the age B and D?
Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is -
A is 30% more efficient than E How much time will they , working together , take to complete a job which A alone could have done in 23 days?