Question

If 1 kg of sugar comes for ₹ 70, then how much will 13 grams of sugar cost?​

Answer 1

Answer:

answer is ₹0.91

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Answer 2

$\large\text{\underline{\underline{Topic}}}$

Proportion

The price of goods is proportional. The ratio of weight to price is equal. So, we can find missing weight or price based on this fact.

$\large\text{\underline{\underline{Explanation}}}$

$\large\text{[Proportion]}$

If we buy 1 kilogram or 1000 grams of sugar for ₹70, the ratio of weight and cost is $1000:70$.

As we want the cost of 13 grams of sugar, let the price be $x$.

$\large\text{[Equation]}$

Then, -

$\text{ \cdots\longrightarrow1000:70=13:x .}$

The product of extremes and means is equal.

$\cdots\longrightarrow1000x=91$

$\cdots\longrightarrow x=\dfrac{91}{1000}$

$\large\text{[Final answer]}$

As we know, the price is in rupees. So, 13 grams of sugar costs ₹0.091.