Christina bought nine pencil boxes each of 350. She gave 7 notes of the same value to the cashier and received Rs. 350 back. What is the value of each note she paid?
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d is the correct answer
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Given:
Christina bought nine pencil boxes each of 350. She gave 7 notes of the same value to the cashier and received Rs. 350 back.
To find:
What is the value of each note she paid?
Solution:
From given, we have,
Christina bought nine pencil boxes each of 350.
⇒ 9 boxes × Rs. 350 = Rs. 3150
She gave 7 notes of the same value to the cashier and received Rs. 350 back.
Let the value of the note be Rs. "x"
⇒ 7x - 3150 = 350
further, solve the above equation.
7x = 350 + 3150
7x = 3500
x = 3500/7
x = 500
Therefore, the value of each note Christina paid is Rs. 500
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