Copper metal when exposed to air turns green in colour due to corrosion. When a copper vessel is exposed to air in the rainy season, the metal reacts with gases, moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide. This gives a green colour to the surface of copper metal.
If '+' means ' - ', ' X ' means '+', ' - ' means '÷' and '÷' means ' X ', then what is the value of the following expression?
14 ÷ 5 x 63 - 9 ...
Which among the given operators should replace the “%” (in the same order) in the given expression below:
7 % 12 % 7 % 38 % 47 % 8
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
56 * 112 * 4 * 15 * 5 * 9
If A denotes ‘addition’, B denotes ‘multiplication’, C denotes ‘subtraction’, and D denotes ‘division’, then what will be the value of t...
In the following question, which mathematical operators can be used so that the expression will become correct?
9 * 6 * 28 * 4 * 30
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
172 * 224 * 8 *...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the equation.
32 * 8 * 55 * 42 * 7 * 305
In an imaginary mathematical system, symbol '–' stands for addition, symbol '+' stands for division, symbol '×' stands for subtraction, and symbol '...
If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplication‘ and ‘×’ means ‘division’ , then find t...
Which two signs should be interchanged to make the given equation correct?
8 – 32 + 20 × 15 ÷ 3 = 271
