২০২৪১
If the annual expenditure of family A on health is x and that of family B is y, then which of the following relations is true?
উত্তর
5x=4y
২০২৪২
A certain number of men can finish a piece of work in 100 days. If , there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?
উত্তর
110
২০২৪৩
One year ago, Pinky was four times as old as her daughter Soma. Six years hence, Pinky's age will exceed her daughter's age by 9 years. The ratio of the present ages of Pinky and her daughter is:
উত্তর
13:4
২০২৪৪
The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq.cm, what is the length of the rectangle?
উত্তর
18cm
২০২৪৬
f(x) এর মান কত হলে ∫ x 2 cos x d x = f ( x ) − ∫ 2 x sin x d x সূত্রটি মেনে চলে?
উত্তর
x 2 sin x
২০২৪৭
A is faster than B,A and B each walk 24km. The sum of their speeds is 7 km/hr and the sum of times taken by them is 14 hours. Then, A's speed is equal to:
উত্তর
4 km/hr
২০২৪৯
The sum of two numbers is 40 and their difference is 4. The ratio of the numbers is:
উত্তর
11:9