PASSAGEDirections Read the given passage carefully and find the answers of following questions. LCM of two numbers A and B is 60. B is a 2-digit number which leaves remainder as 2 when divided by 6. It is also given B>A.Read the instructions carefullyFind Maximum value of A+B.
Question
PASSAGEDirections Read the given passage carefully and find the answers of following questions. LCM of two numbers A and B is 60. B is a 2-digit number which leaves remainder as 2 when divided by 6. It is also given B>A.Read the instructions carefullyFind Maximum value of A+B.
Solution
To find the maximum value of given the conditions in the passage, we need to follow these steps:
-
Understand the conditions:
- The Least Common Multiple (LCM) of and is 60.
- is a 2-digit number that leaves a remainder of 2 when divided by 6.
- .
-
Identify possible values for :
- Since leaves a remainder of 2 when divided by 6, can be expressed as where is an integer.
- must be a 2-digit number, so .
-
List the possible values of :
- Start with : (not a 2-digit number)
- :
- :
- Continue this process until exceeds 99:
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Check the LCM condition for each :
- The LCM of and is 60. We need to find pairs such that their LCM is 60.
- For each , find the corresponding such that .
-
Calculate for each :
- Use the formula for LCM: .
- For each , find such that .
-
Find the maximum value of :
- Check each valid pair and calculate .
- Identify the maximum value of .
Let's go through the calculations for each :
-
For :
- Possible values: 30 (since )
-
For :
- Possible values: 15 (since )
-
For :
- No valid (since 26 is not a factor of 60)
-
For :
- No valid (since 32 is not a factor of 60)
-
For :
- No valid (since 38 is not a factor of 60)
-
For :
- No valid (since 44 is not a factor of 60)
-
For :
- Possible values: 6 (since )
-
For :
- No valid (since 56 is not a factor of 60)
-
For :
- No valid (since 62 is not a factor of 60)
-
For :
- No valid (since 68 is not a factor of 60)
-
For :
- No valid (since 74 is not a factor of 60)
-
For :
- No valid (since 80 is not a factor of 60)
-
For :
- No valid (since 86 is not a factor of 60)
-
For :
- No valid (since 92 is not a factor of 60)
-
For :
- No valid (since 98 is not a factor of 60)
From the valid pairs, the maximum value of is when and .
Answer: The maximum value of is 56.
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