If I denotes ‘÷’, J denotes ‘×’, K denotes ‘−’ and L denotes ‘+’, then what will come in place of ‘?’ in the following equation?
 42 L 18 K (7 J 4) L (21 I 3) J 9 L 22 = ?

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
 33 * 4 * 15 * 3 * 61 = 188

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 23 * 2 * 2 * 5 * 18

Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
 31 * 29 * 43 * 85 * 5

Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.

        64 + 7 = 460

        43 + 8 = ?

        25 + 8 = 212

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
 268 * 4 * 8 * 5 * 14 = 41

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 25 * 5 * 10 * 2 * 8 *60

Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
 12 * 24 * 4 * 2 * 60