৩১৪৪১
The lest number by which 1470 must be divided to get a number which is a perfect square is:
উত্তর
30
৩১৪৪৩
A sells an article which cost him Tk. 400 to B at a profit of 20%. B then sells it to C,making a profit of 10% on the price he paid to A. How much does C pay B?
উত্তর
528
৩১৪৪৫
Eighteen years ago,a father was three time as old as his son.Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father-
উত্তর
108
৩১৪৪৬
The ratio of the incomes of A and B is: 4 and the ratio of their expenditure is 3: 2. If at the end of the year, each saves Tk. 1600, then the income of A is:
উত্তর
4000
৩১৪৪৭
A and B can do a work in 12 days , B and C in 15 days , C and A in 20 days. If A,B and C work together,they will complete the work in:
উত্তর
10 Days
৩১৪৪৮
If the langth of a rectangle is increased by 20% and width is decreased by 20% what is the change in area of rectangle?
উত্তর
decreased by 4%
৩১৪৪৯
A started a business with Tk. 21,000 and is joined afterwards by B with Tk. 36,000. After how many months did B join if the profits at the end of the year are divided equally?
উত্তর
5