Direction : What should come in place of the question (?) in the following question.

(41) ² + (38)² × (0.15)²=?

If then the value of x is

If 0.5x + 0.7y=0.5 and 0.7x + 0.5y=0.7,then the value of x+y is

How many perfect squares lie between 120 and 300? 

23+ 3+33+333+3.33=?

Direction : What should come in place of the question (?) in the following question.

(?)² + (65)²=(160)² -  (90)² – 7191

12 × 15 + 27 – ? = 28% of 400

The number, whose square is equal to the difference between the squares of 975 and 585, is: