Of three positive numbers, the ratio of first and second is 2 ∶ 7 that of second and third is 3 ∶ 5. If the product of first and third is 13440, then what is the sum of the three numbers?
तीन धनात्मक संख्याओं में से, यदि पहली और दूसरी का अनुपात 2 ∶ 7 है, दूसरी और तीसरी का अनुपात 3 ∶ 5 है। यदि पहली और तीसरी संख्या का गुणनफल 13440 है, तो तीनों संख्याओं का योग क्या है?
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Answer:
Let there are three numbers a,b,c
Given a:b=2:7; b:c=3:5
Property of ratios :
So a:b:c would be 6:21:35
Given
(6x)*(35x) = 13440
x=8
Numbers are 6x=48; 21x= 168; 35x= 280
Sum of the three numbers : 62x=62*8= 496
Step-by-step explanation:
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