১৩৮৫২
If A and B are in the ratio 3 : 4, and B and C are in the ratio 12 : 13. Then A and C will be in the ratio:
উত্তর
9 : 13
১৩৮৫৩
In a school there are 286 students where boys and girls are in the ratio 8:5. If 22 new girls are admitted, then new ratio of boys and girls:
উত্তর
4 : 3
১৩৮৫৪
By selling a product for 3500, a seller makes 15% profit. If the profit is decreased to 9%, then selling price will be:
উত্তর
3317
১৩৮৫৫
Father is aged 3 times more than his son and after 8 years he will be 2.5 times, Now, what is the age of the son?
উত্তর
24
১৩৮৫৬
The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of second youngest
উত্তর
7
১৩৮৫৭
What is the percentage increase in the area of a rectangle, if each of its side is increased by 25%?
উত্তর
56.25
১৩৮৫৮
A technician charges a Tk. 50 service fee plus Tk. 30 per hour for labur. If a customer's total cost is Tk. 200, what is the maximum number of full hours the technician can work?
উত্তর
5
১৩৮৫৯
The price of a stock increased by 20% in January and then decreased by 10% in February. If the price of the stock was Tk. 108 at the end of February, what was the price at the beginning of January?
উত্তর
Tk. 100
১৩৮৬০
In a class of 40 students, 18 study French, 15 study Spanish, and 7 study both languages. How many students study neither language?
উত্তর
14