For the following questions answer them individually
3 women and 18 children together take 2 days to complete a piece of work. How many days will 9 children alone take to complete the piece of work if 6 women alone can complete the piece of work in 3 days?
What will come in the place of both question marks (?) in the following question?
$$\frac{(?)^{1.8}}{32}=\frac{16}{(?)^{1.2}}$$
Out of the fractions $$\frac{5}{7},\frac{4}{9},\frac{6}{11},\frac{2}{5}$$ and $$\frac{3}{4}$$ what is the difference between largest and smallest fractions?
The average weight of 21 boys was recorded as 64kg. If the weight of the teacher is added, the average increased by one kg. What was the teacher’s weight?
The perimeter of a square is twice the perimeter of rectangle. If the perimeter of the square is 72 cm and the length of the rectangle is 12 cm, what is the difference between the breadth of the rectangle and the side of the square?