299.85-145.05+299.99×12.02=?

246.01+2953.98-449.98-3.02=?

?% of 1049+74.99% of 420.12=524.98

241÷15×287.98÷18.04=?²

‘A’ sold an article for INR 8000/- and incurred a loss. Had he sold the article for INR 9800/-, his gain would have been twice the amount of loss. At what price should the article been sold to earn 20% profit

A tank has two inlets: A and B. A alone takes 2 hours and B alone takes 3 hours to fill the empty tank completely when there is no leakage. A leakage was caused which would empty the full tank completely in ‘X’ hours when no inlet is open. Now, when only inlet A was opened, it took 3 hours to fill the empty tank completely. How much time will B alone take to fill the empty tank completely? (in hours)