64% of 562.8 = 25% of ?

If 5+2√3/7+√3=a+b√3,then :

The total expenditure of the company over these items during the year 2000 is?

2418.065 + 88 ÷ 14.2 X 6 = ?

If 20 – 4 = 10 and 30 – 6 = 10 then 40 – 8 = ?

7008÷ 24 + 6208÷16=?

5982 + 1345 + 736-? = 4588 ÷ 992

135-924÷2-132x 6=?

15.5% of 850 + 24.8% of 650 = ?

If 15 men and 10 boys can do in 1 day as much work as 12 men and 20 boys. How much should a man be paid a day if a boy is to get Rs.10 a day?