৩১২৭১
In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and Tk. 20 per kg respectively so as to get a mixture worth Tk.16.50 per kg?
উত্তর
7:3
৩১২৭২
When a commodity is sold for Tk. 34.80, there is a loss of 2%. What is the cost price of the commodity?
উত্তর
Tk. 26.10
৩১২৭৩
In a certain English class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of girls in the class?
উত্তর
1 : 2
৩১২৭৪
A man walks down the road for half an hour at an average speed of 3 miles per hour. He waits 10 minutes for a bus, which him back to his starting point at 3: 15. If the man began his walk at 2: 25 the same afternoon, what was the average speed of the bus?
উত্তর
9 mph
৩১২৭৫
A man's expenditure on food is 3/5 of his expenditure on clothes; find the ratio between his expenditure on food and cloth.
উত্তর
3 : 5
৩১২৭৭
The ages of A and B are in the ratio of 8: 5. If the sum of their ages is 39 years, what will be the ratio of their ages after 9 years?
উত্তর
11 : 8
৩১২৭৮
The production cost of one unit of an item is Tk. 10. The item can be sold for a price of Tk. 16. The company further incurs a cost of Tk. 10,000 in the selling process. How many units of the product should be sold for the company to earn a profit of Tk. 50,000?
উত্তর
10000
৩১২৭৯
Mr. Bakhtiar works in the procurement department of a library. Under a new purchase policy, he increased the total number of books in the library by 20%. But soon afterwards, as part of the library cleaning process, 10% of the total library book stock is disposed of. What is the net change over the initial number of books in the library?
উত্তর
none of these
৩১২৮০
In a cricket championship tournament, Team Dhaka has won 30 games out of 50 played. It has 45 more games to play. In order. In order to maintain an average of 80% victory rate, team Dhaka has to win how many games?
উত্তর
24