Find the exact value of the following question:

$$ 1280÷{2^3} + 1220÷{2^2}-182=?$$

Find the exact value of the following question:

$$ 3{1\over2} × 3 {1\over 7}+ 5{3\over4}÷{46\over3}=?$$

Directions : What will come in the place of the question mark (?) in the following number series?

60.75, 40.5, 27, 18, 12, ?

Directions : What will come in the place of the question mark (?) in the following number series?

5040, 840, 168, 42, 14, ? , 7

Directions : What will come in the place of the question mark (?) in the following number series?

? , 8, 14, 34, 76, 148

Directions : What will come in the place of the question mark (?) in the following number series?

201, 199, 192, 175, 143, ?

Directions : What will come in the place of the question mark (?) in the following number series?

16, ?, 8, 12, 24, 60

Directions:  Study the bar-graph given below & answer the questions.
Pie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400

If number of boys in school A and school D together is 2/5 th of the total students in both schools then find difference of girls in school A and school D?