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The ratio of three numbers is 2 : 3 : 6 and their HCF is 45. Find the sum of these numbers.

A. 405

B. 455

C. 495

D. 525


1. B
2. A
3. C
4. D

1 Answer

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Best answer
Correct Answer - Option 3 : C

Given:

Ratio of three numbers = 2 : 3 : 6

HCF = 45

Calculation: 

let the number be 2x, 3x, 6x

HCF is the common factor for all numbers

adding all the number = 2x + 3x + 6x = 11x 

∵ both the x and HCF is common in all the number

Substituting the value of HCF in x 

Sum of the three numbesr = 11 × 45 = 495

∴ The sum of the three number is 495

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