What approximate value should come in the place of question mark (?) in the following question?
 (8423 + 3120 + 6543) ÷ (1536 + 377 + 189) = ?

 If then the value of x is

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

0.75 % of 90 + 0.55 % of 80=?

What approximate value should come in place of question mark.
(1814 .9  ÷  121) x 35.78 ÷ 45.1023 = ? 

Which of the following is a perfect square as well as a cube ? 

(5.5)³-(4.5)³ is equal to : 

is equal to : 

1008 divided by which single-digit number gives a perfect square?