Question
Quantity I: Ratio of present ages of A and B is 6:7 respectively while the ratio of present ages of C and D is 8:9. Ratio of the age of B after two years to age of C seven years ago is 6:5. Sum of the present ages of A, B, C and D is 120, then find average of the ages of A and
Quantity I: Ratio of present ages of A and B is 6:7 respectively while the ratio of present ages of C and D is 8:9. Ratio of the age of B after two years to age of C seven years ago is 6:5. Sum of the present ages of A, B, C and D is 120, then find average of the ages of A and
D. Quantity II: If the average of ‘q’ numbers is 20. If half of the numbers are decreased by 20 and half of the others are increased by 16, then what is the new average?
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