৩১৫৬১
A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 5 classes were half full, 3 classes were 3/4 full and 2 classes were 1/8 empty. A total of 70 students were absent. What is the total number of students in this school?
উত্তর
200
৩১৫৬২
In a batch of 500 students, forty percent are girl. Twenty-five percent of the boys and half of the girls agreed to go for a study tour. What percentage of the entire batch did not sign up for the tour?
উত্তর
35%
৩১৫৬৩
Two different schools, A and B, have the same number of students. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. What is the ratio of the boys in school A to the girls in school A?
উত্তর
1:2
৩১৫৬৪
An empty bucket being filled with paint at a constant rate takes 6 minutes to be filled to 710 of its capacity. How much more time will it take to fill the bucket to full capacity?
উত্তর
2 minutes
৩১৫৬৫
In the last week of a month, a car dealer sold 12 cars. A new sales promotion came out the first week of the next month and he sold 19 cars that week. what was the percent increase in sales from the last week of the previous month compared to the first of the next month?
উত্তর
58%
৩১৫৬৬
An instrument store gives a 10% discount to all students of the original cost of an instrument. During a school sale an additional 15% is taken off the discounted price. Rahim, a student at the local high school, purchases a flute for Tk 306. How much did it originally cost?
উত্তর
Tk 400
৩১৫৬৭
Ratan and Moinul have started a business investing taka 2.5 million and 3.5 million respectively. After 4 months Ratan gave in 5 lakh taka more while Moinul withdrew 5 lakh taka. If the year ending profit is 12.92 million taka what will be the profit share of Moinul in million taka?
উত্তর
8.60
৩১৫৬৮
If the length and width of a rectangle garden plot were each increased by 20% , what would be the percent increase in the area of plot?
উত্তর
20%
৩১৫৬৯
A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increase by 10%. What is the radio of his new profit to his usual profit?
উত্তর
22:25
৩১৫৭০
A cube has a volume of 8M3. If each side is doubled is length, what will be its new volume?
উত্তর
16M3