1
(2) Kantabai bought 15 kg tea and 5 kg sugar from a shop. She paid 50 as
return fare for rickshaw. Total expense was 700. Then she realised that by
ordering online the goods can be bought with free home delivery at the same
price. So next month she placed the order online for 2 kg tea and 7 kg sugar.
She paid 880 for that. Find the rate of sugar and tea per kg.
(2) Kantabai bought 15 kg tea and 5 kg sugar from a shop. She paid 50 as
return fare for rickshaw. Total expense was 700. Then she realised that by
ordering online the goods can be bought with free home delivery at the same
price. So next month she placed the order online for 2 kg tea and 7 kg sugar.
She paid 880 for that. Find the rate of sugar and tea per kg.
Answers & Comments
Answer:
so ur answer like that only....
Step-by-step explanation:
Let the rate of tea be x Rs per kg and that of sugar be y Rs per kg.
When Kantabai bought the items by going to the shop,
2
3
x+5y+50=700
⇒3x+10y=1300....(I)
When Kantabai bought the items online then
2x+7y=880......(II)
Multiplying (I) with 2 and (II) with 3 we get
6x+20y=2600......(III)
6x+21y=2640.......(IV)
eq.(IV)−(III)
y=40
Putting the value of y =40 in (II)
2x+7(40)=880
⇒2x=880−280=600
⇒x=300
Thus, tea is at 300 Rs per kg and sugar is 40 Rs per kg.
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