৩১৩৪১
In dividing a number by 585, a student employed the method of short division. He divided the number successively by 5, 9 and 13 (factors of 585) and got the remainders 4, 8, 12 respectively. If he had divided the number by 585, what would have been the remainder?
উত্তর
584
৩১৩৪২
A tea merchant blends 2 kinds of tea, putting in 3 parts of a Tk. 25 per kg grade to 1 part of a Tk. 15 per kg. If the mixture is changed to 1 part of the Tk. 25 per kg grade to 3 parts of the less expensive grade, how much will the shop lose or save in blending 200 kg?
উত্তর
save Tk. 1,000
৩১৩৪৩
In what ratio must a grocer mix two varieties of tea worth Tk. 60 a kg and Tk. 65 a kg so that by selling the mixture at Tk. 68.20 a kg he may gain 10%?
উত্তর
3:2
৩১৩৪৪
In a certain population, there are times as many people aged 21 or under as there are people over 21. The ratio of those 21 or under to the total population is:
উত্তর
1 to 2
৩১৩৪৫
Of 30 applicants for a job, 14 had at least 4 years' experience, 18 had degrees, and 3 had less than 4 years' experience and did not have a degree. How many of the applicants had at least 4 years experience and a degree?
উত্তর
14
৩১৩৪৬
The ratio between the length and the perimeter of a rectangular plot is 1:3. What is the ratio between the length and breadth of the plot?
উত্তর
1:2
৩১৩৪৭
A drink contains 20% cranberry juice, 20% raspberry juice and the rest is apple juice. You added 250 ml water in 750 ml of the drink. Now, what is the ratio of water of water to apple juice in the drink?
উত্তর
5:9
৩১৩৪৮
In what ratio should a 20% methyl alcohol solution be mixed with a 50% methyl alcohol solution so that the resultant solution has 40% methyl alcohol in it?
উত্তর
1 : 2
৩১৩৪৯
The Lions Club has a target of raising at least Tk 500 thousand. It has already raised Tk 100 thousand. The club is sponsoring a 'Pitha' festival and Tk 5000 per ticket. Which equation represents the number of tickets (t) that the club must sell to meet its target?
উত্তর
5t+100=500
৩১৩৫০
70 students are enrolled in Management, Accounting and Marketing. 40 students are in Management, 35 are in Accounting, and 30 are in Marketing. 15 students are enrolled in all three courses. How many of the students are enrolled in exactly two of the courses?
উত্তর
5