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Farah buys n pencils at the price shown and pays with the ₹100 note. Which expression gives the change she gets back (in ₹)?

Class 6Introduction to VariablesAlgebra

A $5 n - 100$
B $100 - 5 n$
C100 − n − 5
D $95 n$

Step-by-Step Solution

Cost of

n

pencils

= 5 \times n = 5 n

rupees. Change

= 100 - 5 n . (5 n - 100

subtracts the wrong way round.)

Answer: B)

100 - 5 n

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