The scores obtained by a student in his last 15 tests are 14, 22, 18, 22, 14, 14, 28, 30, 14, 22, 18, 30, 20, 22, and 30. Find the difference between the modes of this set of data.
ATQ, Mode is the number that occurs the most number of times in the given set of data. Modes = 14 and 22 (both occur 4 times each). Therefore, the required difference = 22 - 14 = 8.
Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equations on that basis:
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