Study the following graph carefully and answer the questions that follow:
The graph given below represents the number of users of two broadband services A and B across 5 cities P, Q , R, S and T.
What is the difference between the total number of users of brand A and B together in city R and the total number of users of brand A and B together in city P?
Total number of users of brand A and B together in city R = 600 + 650
= 1250
Total number of users of brand A and B together in city P = 500 + 600
= 1100
$$\therefore$$ Required difference = 1250 - 1100 = 150
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