The following pie chart and table shows the percentage wise distribution of Computers, say brand A and brand B by six shops during six-months July - December in the year 2022.
Total Number of Computers = 2400
Find the ratio of number of computers sold by A in the month of August to the number of computers sold in the month of December.
Answer & explanation
Correct answer: option 2
Total sale by A in august = (22% of 2400) × \(\frac{7}{15}\)
and sale by A in december = (16% of 2400) × \(\frac{8}{15}\)
Required ratio = 22% × 2400 × \(\frac{7}{15}\) : 16% × 2400 × \(\frac{8}{15}\) = (22 × 7) : (16 × 8) = 77 : 64
Alternate:
Total number of Computers sold in August is 22%
100% = 2400
22% = 22% × 2400 = 528
Ratio of brand A and brand B computers in August is 7 : 8
15 Units = 528
Brand A (7 Units) = \(\frac{528}{15}\) × 7
Total number of Computers sold in December is 16%
100% = 2400
16% = 16% × 2400 = 384
Ratio of brand A and brand B computers in December is 8 : 7
15 Units = 384
Brand A (8 Units) = \(\frac{384}{15}\) × 8
Required ratio = \(\frac{528}{15}\) × 7 : \(\frac{384}{15}\) × 8 = 77 : 64