১০৯৮১
A train can cross another train of equal length coming from 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.
উত্তর
4950 m
১০৯৮২
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 A. In how many days C can complete the work alone?
উত্তর
24 days
১০৯৮৩
A shopkeeper sold an item at 20% profit and another item at 10% loss. If the cost price of both the items is same, find the overall profit percent.
উত্তর
5.00%
১০৯৮৪
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?
উত্তর
126 days
126 days
১০৯৮৫
A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?
উত্তর
13 days
১০৯৮৬
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?
উত্তর
None of these
১০৯৮৭
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.
উত্তর
27 km
১০৯৮৮
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?
উত্তর
Tk. 7500
১০৯৮৯
When a certain number is divided by 7, the remainder is 0, if the remainder is not 0 when the number is divided by 14, then the remainder must be -
উত্তর
7
১০৯৯০
A mixture of 20 kg of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%?
উত্তর
8