৩১৩৯১
A Company makes a profit of 6% on its first Tk. 10,000 of sales day and 5% on all sales in excess of Tk. 10,000 for that day. How much taka in profit will the company make in a day when sales are Tk 6,0000?
উত্তর
3100
৩১৩৯২
Two number M and N are such that the sum of 5% of M and 4% of N is two-third of the sum of 6% of M and 8% of N. What is the ratio of M and N?
উত্তর
4 : 3
৩১৩৯৩
A large cube is formed from the material obtained by melting three smaller cubes of 3,4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?
উত্তর
25 : 18
৩১৩৯৫
Two trains of the same length running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively andhey cross each other in 23 seconds. What is the ratio of their speeds?
উত্তর
3 : 2
৩১৩৯৬
X, Y and Z jointly started a business. It was agreed that X would invest Tk 6,500 for 6 months, Y, Tk 8,400 for 5 months and Z, Tk 10,000 for 3 months. X wants to be the working member for which, he was to receive 5% of the profits. The profit earned was Tk 7,400. What is the share of Y in the profit?
উত্তর
Tk 2,660
৩১৩৯৭
A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and C in 198 seconds, all starting at the same point. After what time will they gain meet at the starting point altogether?
উত্তর
46 minutes and 12 seconds
৩১৩৯৯
The ratio of income of Kamran and Dolon is 3: 4. The ratio of their expenditures is 4: 5. Find the ratio of their savings if the savings of Kamran is one fourth of his income?
উত্তর
12 : 19