The sum of four numbers is 64. If we add 3 to the first number, 3 is subtracted from the second number, the third is multiplied by 3 and the fourth is divided by 3, then all the results are equal. What is the difference between the largest and the smallest of the original number?

Direction : What value should come in the place of question mark (?) in the following questions?

1798 ÷ 31 × ? = 348

$$ {109.07\sqrt{?}}-{61\over 21.02} ×?=47.96\sqrt{?}$$

Direction : What value should come in the place of question mark (?) in the following questions?

$$ \sqrt{8281} =(?) $$

The sum of the digits of a 2 digit number is 9. When 27 is added to the number, the digits get interchanged. Find the number.

4/5 of a number is 10 more than two-thirds of the same number. What is that number?

Select the number triad that is analogous to the given triads.
 (64, 8, 65), (125, 27, 89)

0.8% of a number is 31, then find the number.