10. If oranges are sold at 45 per dozen, Manu can buy 6 dozens of them with the money he has. Find the decrease in the number of oranges that he can buy if the cost is increased by 9 per dozen.
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Answer:
1 dozen =₹45
6 dozen=₹3240
If cost of one dozen is increased by ₹9.
Then,new cost price=₹54
No. of dozens he could buy =₹(3240/54)=60 oranges
Step-by-step explanation:
45*6 =270
270*9=2430
ans=2430