What will come in place of the question mark (?) in the following questions?
56835 - 12683 + 38934 = ?
$$4244 \div 4 + 4554 \div 9 = ?$$
$$\sqrt{20164} = ?$$
$$13 \times 28 \times ? = 5040$$
$$(18)^2 + (14)^2 - (21)^2 =?$$
For the following questions answer them individually
What is the least number that can be added to 5300 to make it a perfect square?
46% of a number is 115. What is 150% of that number ?
Meera had a certain amount, she gave 15% of that amount to Anish, 32% to Rubina and 25% to Sana. 3/4 th of the remaining amount is 8,400.How much did she give Anish?
In how many different ways can the letters of the word `TRENDS’ be arranged?
If the following fractions are arranged in an ascending order (from left to right), which of them will be the second from the left end?
$$\frac{2}{7}, \frac{3}{13}, \frac{5}{11}, \frac{7}{15}, \frac{4}{9}$$