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| 1. |
If the sum of first 6 number is 240 and the last 6 number is 180, then what is the value of 6th number ? |
| Answer» SUM of 6 numbers =60×30=180Sum of first 4 numbers =4×25=100Sum of last 3 numbers =3×35=105∴ Fourth NUMBER =(100+105)−180 =205−180 =25 . | |