১১৩৯১
A, B and C invested capitals in the ratio of 4 : 6 : 9. At the end of the business term, they received the profit in the ratio of 2 : 3 : 5. Find the ratio of their time for which they contributed their capitals .
উত্তর
9 : 9 : 10
১১৩৯২
A trader marks his goods at 20% above the cost price . If he allows a discount of 5% for each down payment, his profit for such a transaction is
উত্তর
14%
১১৩৯৪
Some money is divided amongst three workers A, B and C such that 5 times A's share is equal to 12 times B's share which is equal to 6 times C's share . The ratio between the shares of A,B and C is?
উত্তর
12 : 5 : 10
১১৩৯৫
At simple interest of 5%, 6% and 8% for three consecutive years, the interest earned is Tk. 760. Find The principle?
উত্তর
Tk. 4,000
১১৩৯৬
If the compound interest of a certain sum of money for two successive years be Tk. 225 and Tk. 238.50 . What is the rate of interest per annum?
উত্তর
6%
১১৩৯৭
A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is
উত্তর
2/91
১১৩৯৮
A word consists of 9 letters; 5 consonants and 4 vowels. Three letters are chosen at random. What is the probability that more than one vowel will be selected?
উত্তর
17/42
১১৩৯৯
The ages of X and Y are in the proportion of 6 : 5 and total of their ages is 44 years. The proportion of their ages after 8 years will be
উত্তর
8 : 7
১১৪০০
The volume of a wall, 5 times as high as it is broad and 8 times as long as it is high, is 12.8 m 3 . Find the breadth of the wall.
উত্তর
40cm