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Multiple Choice Questions

Out of three numbers the first is twice the second and is half of the third If the average...........

Quantitative Aptitude(IBPS PO) Average

Out of three numbers , the first is twice the second and is half of the third .If the average of the three numbers is 56 ,the three numbers in order are :

45 , 78 ,54

47, 75 , 62

52 , 68 , 80

48 , 24 , 96

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Explanation:

Solution:
Suppose the numbers are n1 ,n2 and n3 .
Then ,
n1 : n2: n3 = 2 : 1 : 4
And
n1 + n2 + n3 = 56 * 3 = 168
n1 = (2/7) * 168 = 48
n2 = (1/7) * 168 = 24
n3 = (4/7) * 168 = 96

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