How many districts were there when Haryana state was

?% of 740 – 8% of 650 = 7.2

Find the value of x.

  √441 ÷ 21+ √400 = 1 × x

√( (664+ √(136+ √(59+ √(21+ √(7+ √81) ) ) ) ) ) = ?

Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence? 

40 × 5 + 27) × 9 = ?

What will come in the place of question mark (?) in the given expression?

1/5 of 6/3 of 3/2 of 1966 = ?

125 ÷ 5 + 14 × 4 = ? + 72 ÷ 4 – 35

4387897 – 3286871 – 51926 = ?

Find the simplified value of the given expression:

15 of 4 ÷ 3 × 4² + √49 – 12