Question
The total number of phones to the total number of
laptops in Stores A and B is in the ratio 120:13. Additionally, the number of laptops in Store A to those in Store B is in the ratio 3:4. Given that the total number of phones across both stores is 600, determine the approximate difference in the number of laptops between Store A and Store B.Solution
ATQ;
Total phones : total laptops = 120 : 13
Total phones = 600
So total laptops = (13/120) × 600 = 65
Ratio of laptops in Store A : B = 3 : 4
Difference = 65 × (3−4)/(3+4) = 9.29 (rounded to 9)
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