১৩৭৪১
The cost of 9 mangoes and 5 apples is equal to the cost of 7 mangoes and 8 apples. Find the ratio between the cost of 1 mango and the cost of one apple.
উত্তর
3 : 2
১৩৭৪২
A shopkeeper has sufficient money to buy 50 books. On reduction in the price of each book by Tk. 4, he could buy 10 books more. How much money does he has?
উত্তর
Tk. 1200
১৩৭৪৩
A man deposits certain amount in his bank account. After a few days. he withdraws half of the money deposited and deposits Tk. 500 more. If he has a balance of Tk. 2000 in his bank account, find the amount deposited initially.
উত্তর
Tk. 3000
১৩৭৪৪
A worker earns Tk. 250 on the first day and spends Tk. 200 on the second day, earns Tk. 250 on the third day and again spends Tk. 200 on the fourth day and so on. On which day would he have had Tk. 1000?
উত্তর
31th day
১৩৭৪৫
In a group of 135 persons, 50% people contributed tk. 40 each, 30% contributed Tk. 60 each and the remaining persons contributed Tk. 80. Find the average contribution for the group?
উত্তর
Tk. 54
১৩৭৪৬
The length of one side of a square inscribed in a circle is 2. What is the area of the circle?
উত্তর
2π
১৩৭৪৭
If 4% of (P + Q) are 8 and P is a positive integer. What is the greatest possible value of Q?
উত্তর
199
১৩৭৪৮
Income of A is 25% less than B. What percent B's income would be more than A?
উত্তর
33.33%
১৩৭৪৯
If a rectangle's length and width are both doubled, by what percent is the rectangle's area increased?
উত্তর
300%
১৩৭৫০
A box contains 90 nuts each of 100 gm and 100 bolts each of 150 gm. If the entire box weighs 35.5 kg, then find the weight of the empty box.
উত্তর
11.5 kg