Find difference between average number of books sold by A amp C and total pens sold by B ........

Quantitative Aptitude(IBPS PO) Data Table

Direction (): Table given below shows ratio of books to pens sold by four different shops and it also shows average number of books and pens sold by these four shops.

Find difference between average number of books sold by A & C and total pens sold by B?

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Explanation:

Total books sold by shop A = 100 ×2×4/5=160
Total books sold by shop C = 75 ×2×2/5= 60
Average number of books sold by shop A & C = (160+60)/2 = 110
Total pens sold by shop B = 60 ×2×3/4=90
Required difference = 110 – 90 = 20

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