Mathematics

Mr. Karim gave 40% of the money he had to his wife. He also gave 20% of the remaining amount to each of his three sons. Half of the amount now left was spent on miscellaneous items and the remaining amount of Tk. 12,000 was deposited in the bank. How much money did Mr. Karim have initially ?

Mathematics

A dealer buys dry fruit at the rate of Tk. 100, Tk. 80 and Tk. 60 per kg. He bought them in the ratio 12 : 15 : 20 by weight. He in total gets 20% profit by selling the first two and at last he finds he has no gain no loss in selling the whole quantity which he had. What was the percentage loss he suffered for the third quantity?

Mathematics

In a business A invests Tk. 600 more than B. The capital of B remained invested for $7 \frac{1}{2}$ months, while the capital of A remained invested for 2 more months. If the total profit be Tk. 620 and B gets Tk. 140 less than what A gets, then what will be the amount of A's capital?

16 women take 12 days to complete a work which can be completed by 12 men in 8 days. 16 men started working and after 3 days 10 men left and 4 women joined them. How many days will they take to complete the remaining work?

Three cars leave A and B in equal time intervals. They reach B simultaneously and then leave for Point C which is 240km away from B. The first car arrives at C an hour after the second car. The third car, having reached C, immediately turns back and heads towards B. The first and the third car meet a point that is 80km away from C. What is the difference between the speed of the first and the third car?

A, B and C together start a business. The ratio of the investments of A, B and C is 0.125: 0.75 : 0.25. After 8 months A adds thrice amount of his earlier investment and C withdraws half of his earlier investment. At the end of the year, they earn a total profit of Tk. 58,000. What is B's share in the profit?