1. Kohli's mean score in the three cricket matches was 55 runs.

After four matches his mean score was 61. How many runs

did he score in the fourth match?

79

Step-by-step explanation:

You first multiply 3 by 55 in order to get the runs he scored in the three matches which will be 165. You then multiply 4 by 61 in order to get the runs in the four matches which will be 244. Lastly you subtract 165 from 244 to get 79 which are the number of runs he scored in the fourth match.