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Two balls A and B rotate along a circular track. Ball A makes 2 full rotations in 26 minutes. Ball B makes 5 full rotations in 35 minutes. If they start rotating now from the same point, when will they be at the same starting point again? *

the balls meet at the starting point at every 60 mins interval.

Step-by-step explanation: It is given that the speed of A is 4 rotations / 120 second

This is equal to 1 rotation / 30 sec Similarly , the speed of B is 3 rotations / 60 sec

or 1 rotation / 20 second

Now, let us take the HCF of the time taken by both the balls A and B.

i.e. HCF of 30 and 20 is 60.

Therefore , the balls meet at the starting point at every 60 mins interval.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1