Question

If the ratio of the number of persons who purchased digital clocks in May and June is 5:3, the average number of persons who purchased analog and digital clocks in June is 525 and then find the number of persons who purchased analog clocks in June? 

A 540 Correct Answer Incorrect Answer
B 750 Correct Answer Incorrect Answer
C 440 Correct Answer Incorrect Answer
D 720 Correct Answer Incorrect Answer

Solution

The number of persons who purchased digital clocks in May = 650 x 2 – 750 = 1300 – 750 = 550 The number of persons who purchased digital clocks in June = 550 x 3/5 = 330 The number of persons who purchased analog and digital clocks in June = 525 x 2 = 1050 The number of persons who purchased analog clocks in June = 1050 – 330 = 720

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