Mathematics
Mathematics
Problem
If a pencil costs ₹5, how much will 7 pencils cost?Intuitive explanation
This is a proportional reasoning problem: when one item has a fixed price, the total cost scales linearly with quantity. Multiply the unit price by the number of items to find the total. The key insight is recognizing that "cost per pencil" stays constant, so you're really just scaling up by the quantity.
Intuitive explanation
This is a proportional reasoning problem: when one item has a fixed price, the total cost scales linearly with quantity. Multiply the unit price by the number of items to find the total. The key insight is recognizing that "cost per pencil" stays constant, so you're really just scaling up by the quantity.