A number when divided successively by 4 and 5 leaves remainders 1 and 4 respectively, when it is successively divided by 5 and 4, what will be the respective remainders?
A contractor undertakes to do a piece of work in 40 days . he engages 100 men at the beginning and 100 more after 35 days and completes the work in stipulated time. If he had not engaged the additional men, how many days behind schedule would it be finished?
In a certain office 1/3 of the workers are women, ½ of the women are married and 1/3 of the married women have children . If ¾ of the men are married and 2/3 of the married men have children what part of workers are without children?
The average weight of three mane A, B and C is 84 kg. Another man D joins the groups and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace , A, then average weight of B, C, D and E becomes 79 Kb. What is the weight of A?
A, b and C can complete a piece of work in 16,32 and 48 and 48 days, respectively. They started working together but C left after working 4 days and B left 2 days before the completion of the work. How many days it took in total to complete the work?
The cost of two watches taken together is Tk. 840. If by selling one at a profit of 16% and the other at a loss of 12%, there is no loss or gain in the whole transaction, find the cost of each of the two watches.
The perimeter of a square field is equal to the perimeter of a rectangular field. Length of the rectangular field is 3 times of its width and the area 768 square meter. How many square sizes tiles of 80 centimeter wide will be required to cover the square field?
Solve the equation: 1x+2+1x+5=1x+4+1x+3
solve the equation: x-4x-1+x-7x-3+x-2x-9=3
Mr. Karim borrowed Tk. 500 at 5% simple interest per year. After some time, he borrowed Tk. 400 at 3*1/2 simple interest per year for the second time. Six months after the second time borrowing, he repaid both the borrowed money along with interest and the amount repaid was TK. 994.50. How many years after the first time borrowing Mr. Karim repaid the borrowed money?
Rahim can do a piece of work in 80 days. Rahim works for 10 days and Karim alone finishes the rest of the work in 42 days. How much time would it take for the two them together to complete the whole work?
The length of a rectangular field is 1*1/2 times of width. An amount of Tk. 10,260 was needed to cover the field with at the rate of 1.9 Tk. per square mater. How much would cost to fence the four sides of the rectangular field at the rate of Tk. 2.5 per meter?
Salam used part of Tk. 100,000 to purchase a television. Of the remaining portion, he invested 1/3 of it at 4 percent simple annual interest and 2/3 it at 6 percent simple annual interest, if after a year the income from the two investments totaled Tk 320, what was the purchase price of the television?
A man has to go 10 km to catch a bus. He walks part of the way at 7km/per hour and runs rest of the way at 12 km/per hour. If he takes 1 hour 15 minutes to complete his journey, find how far he waked.
The length of a rectangular field is 1*/1/2 times of width. An amount of Tk. 10,260 was needed to cover the field with grass at the rate of Tk. 1.9 per square meter, How many would it cost to fence the four sides of the rectangular field at the rate of Tk. 2.5 per mater?
Solve the equation : 42x+3+155x+4=357x+6
A man deposited TK. 5000 with a bank that pays interest at the rate 5% per annul every six month, The man will withdraw Tk. 500 from his principal plus any interest accrued at each six- month period. How much total interest can he expects to receive?
Selling 12 candies at a price of Tk. 10 yields a loss of x% and selling 12 candies at a price of Tk 12 yields a profit of x%. What is the value of x?
এক ব্যাক্তি ব্যাংক বার্ষিক ৫% সুদ হারে ৩,৫০০.০০ টাকা জমা রাখলো। সুদের হার যদি বার্ষিক ৪.৫০% এ হ্রাস পায় তাহলে সে বছরের কত কম সুদ পাবে?
রহিম একটি কাজ ১০ দিনে সমাপ্ত করে। একই কাজ সম্পন্ন করতে করিমের সময় লাগে ১৫ দিন। দুইজনে একত্রে কয়দিনে কাজটি করতে পারবে?