The cost of $15$ articles is Rs. $210$ . What is the cost of $25$ articles?

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Solution

Cost of $15$ articles $=$ Rs. $210$
cost of $1$ article $= \frac{210}{15} =$ Rs. $14$
$∴$ cost of $25$ artiicles $=$ cost of $1$ article $\times 25$
$= 14 \times 25 =$ Rs. $350 ‬$

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The cost of 15 articles is Rs.210. What is the cost of 25 articles?

Cost of 15 articles=Rs.210cost of 1 article=21015=Rs.14∴ cost of 25 artiicles =cost of 1 article×25=14×25=Rs.350‬

The cost of $15$ articles is Rs. $210$ . What is the cost of $25$ articles?

Cost of $15$ articles $=$ Rs. $210$
cost of $1$ article $= \frac{210}{15} =$ Rs. $14$
$∴$ cost of $25$ artiicles $=$ cost of $1$ article $\times 25$
$= 14 \times 25 =$ Rs. $350 ‬$