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Manoj has 26 notes of two rupees and some five rupees notes. If he has Rs. 127, then how many five rupees notes does he have?

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answer is D.

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Detailed Solution

Concept- While solving single-variable equations, we isolate the variable on one side so that we can get a number on the other side that is equal to it.
Let the total number of five rupees notes that Manoj has be

.
We have 26 two rupees notes and

five rupees notes which constitute Rs. 127.
Now, we write the equation that represents the given information.

By multiplying,

Moving the constant to right,

Subtracting numbers,

Dividing both sides by 5,

Therefore, Manoj has

five rupees notes.
Hence, the correct answer is option 4) 15.

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