A product is made with three components A, B and C the ratio of the prices are 4 : 3 : 2. After 1 year price of A increased by 10%, B increased by 8% and C decreased by 5%. What is the percentage of total increase?

A and B started a business with initial investments in the respective ratio of 18 : 7. After four months from the start of the business, A invested Tk. 2,000 more and B invested Tk. 7,000 more. At the end of one year, if the profit was distributed among them in the ratio of 2 : 1 respectively. What was the total initial investment with which A and B started the business?

A river is flowing at a speed of 5 km/h in a particular direction. A man, who can swim at a speed of 20 km/h in still water, starts swimming along the direction of flow of the river from point A and reaches another point B which is at a distance of 30 km from the starting point A. On reaching point B, the man turns back and starts swimming against the direction of flow of the river and stops after reaching point A. The total time taken by the man to complete his journey is?

The cost of manufacturing a popular model car is made up of three items were in the ratio of 4 : 3 : 2. Next year the cost of the raw material rose by 10%, labour cost increased by 8% but overhead reduced by 5% then % increase into the price of the car?

The distance between two stations 'X and Y' is 450 km. A train L starts at 6:00 pm from X and moves towards Y at an average speed of 60 km/h. Another train M starts from Y at 5:20 pm and moves towards X at an average speed of 80 km/h. How far from X will the two trains meet and at what time ?

Amit deposited some money in a bank, which pays 15% interest per annum compounded yearly. If the bank provides simple interest instead of compound interest, he receives Tk. 2,400 after 2 years. Find the total amount that he received after 2 years.

12 men can complete a piece of work in 36 days. 18 women can complete the same piece of work in 60 days. 8 men and 20 women work together for 20 days. If only women were to complete the remaining piece of work in 4 days, how many women would be required?