Find out the approximate value which should replace the question mark (?) in the following questions. (You are not expected to find out the exact value)
$$\sqrt{10000}+\frac{3.001}{4.987}$$ of 1891.992=?
$$0.0004 \div 0.0001 \times 36.000009 = ?$$
For the following questions answer them individually
The average of four consecutive even numbers P. Q. R and S respectivelv is 55. What is the product of Q and S ?
The cost of 5 sharpeners and 14 pencils is Rs.56. What would be the cost of 15 sharpeners and 42 pencils ?
12 women alone can complete a piece of work in 5 days, whereas 3 women and 9 children together can complete the same piece of work in 10 days. in how many days can 36 children complete the same piece of work ?
What is the least number that can be added to 3500 to make it a perfect square ?
The sum of 35% of a number and 12% of the same number is 3055. What is the 72% of that number ?