Question

muktul bought 2 1/2 kg of potatos for ₹21 3/4 how much does 3 1/2 kg potatoes cost?(Urgent)​

Answer 1

Answer:

I think the answer would be ₹30 for 3 1/2kg potatoes

Answer 2

Step-by-step explanation:

first we need to find the cost of one potato,

$2 \frac{1}{2} = 21 \frac{3}{4} \\ \frac{5}{2} = \frac{87}{4}$

we divide the cost by the number of potatoes to get cost of one potato, we get

$\frac{ \frac{5}{2} }{ \frac{5}{2} } = \frac{ \frac{87}{4} }{ \frac{5}{2} } \\ 1 = \frac{87}{4} \times \frac{2}{5} \\ = \frac{87}{10}$

so, cost of 3 1/2 potatoes is,

$3 \frac{1}{2} \times \frac{87}{10} \\ = \frac{7}{2} \times \frac{87}{10} \\ = \frac{574}{20} \\ = 28 \frac{14}{20}$

Hence, the cost of 3 1/2 potatoes is ₹ 28 14/20.