Answer-Which of the following is the largest number among?

According to the options, Subtract form option 3 to option 4, 27 - 25 - 29 - 27 227 - 25 - 29 10.392 - 10.385 0.007 Clearly, we can see option 3 4. Subtract form option 2 to option 3, 23 - 21 - 25 - 23 223 - 21 - 25 9.59 - 9.58 0.01 Clearly, we can see option 1 2. So, option 3 4, option 2 3, option 1 2 The largest number among is 23 - 21