The bar graph given below shows the number of books sold by two shopkeepers S1 and S2 in 5 months.
J1 -The total number of books sold by S1 and S2 in all 5 months.
J2 -The difference between the total number of books sold by S1 in all 5 months and total number of books sold by S2 in all 5 months.
What is the value of (J1, J2 )?
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