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One pen costs ₹12. The cost of $p$ pens is $12 p$ rupees. What do 15 pens cost?

Class 6Rules and Formulas with VariablesAlgebra

A₹1215
B₹150
C₹27
D₹180

Step-by-Step Solution

12 p

with

p = 15

gives

12 \times 15

= ₹180. (₹27 adds instead of multiplying; ₹1215 just writes the digits side by side.)

Answer: D) ₹180

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