__ is a type of iron which contains 0.1% to 0.5% impurity and is used for making nuts and bolts.
Mild steel is a type of iron which contains 0.1% to 0.5% impurity and is used for making nuts and bolts.
A garage worker goes to a nearby store to buy nuts and bolts. He has Rs. 40 and he is going to buy nuts for 40 paisa and bolts for Rs. 1.5 each. Write an inequality to describe the possible number of nuts and bolts that he can buy (Take the cost price of each bolt and nut as Rs.x and Rs.y respectively).
A box contains 100 bolts and 50 nuts. It is given that 50% bolts and 50% nuts are rusted. Two objects are selected from the box at random. Find the probability that either both are rusted.