√441.441 + √256.256 = ?

By how much is 12% of 24.2 more than 10% of 14.2 ?

Correct expression of 6.46 is

By how much is four-seventh of 560 greater than five-eighth of 400?

There are two fractions such that fraction X is thrice the fraction Y and their product is 25/12. Which of the following is equal to Y?

(0.29)2 - (0.01)2/0.3 = ?

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