Find the total cost of the items purchased.
$\begin{matrix} I t e m & P r i c e p e r u n i i t & Q u a n t i t y & T o t a l P r i c e S u g a r & ₹ 44 / k g & 500 g M a n g o J u i c e & ₹ 30 / l i t r e & \frac{1}{2} O n i o n & ₹ 40 / k g & 750 g \end{matrix}$

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Solution

Cost of 1 kg sugar = ₹44/kg
Cost of ½ kg sugar = half of ₹44
= $\frac{1}{2}$ x ₹44
= ₹44÷2
= ₹ 22
Cost of 1 litre of mango juice = ₹30
Cost of ½ litre mango juice = half of ₹30
= $\frac{1}{2}$ x ₹30
= ₹30÷2
= ₹15
Cost of 1 kg onion = ₹40
Cost of ¾ kg onion = Cost of half kg and cost of quarter kg onion
= half of ₹40 + quarter of ₹40
= $\frac{1}{2}$ x ₹40 + $\frac{1}{2}$ x ₹40
= ₹20 + ₹10
= ₹30
Hence, total cost of all items = ₹(22+15+30)
= ₹67

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