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Maths Puzzle
When the price of oranges is lowered by 40%, 4 more oranges can be purchased for Rs 12 than can be purchased for the original price. How many oranges can be purchased for Rs 24 at the original price?
Read Solution (Total 3)
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- Let the original Price be "P" and Original Consumption be "Q"
Thus P*Q=12
Now, after the change in price:
New price is 0.6p and the new quantity is (Q+4)
Now, 0.6P*(Q+4)=12
Solving, we get P=2
Thus, we could purchase 12 oranges for Rs.24 - 12 years agoHelpfull: Yes(2) No(0)
- 12 Oranges can be purchased for 24rs.
40% of 12rs = 4.8rs
So, In a New price, 4 oranges can be bought for Rs.4.8
Therefore,
New price of 1 orange= 4.8/4 = 1.2rs
For 12rs, we can bought = 12/1.2 = 10 oranges
So, at original price 12rupees, we can bought = 10-4 oranges = 6 Oranges
Original price = 12/6 = 2rs per orange
So, Orange can be purchased for for 24rs = 24/2 = 12 oranges. - 12 years agoHelpfull: Yes(2) No(0)
- let an orange be x Rs.
for 12 Rs we get y oranges. ie
xy=12.......
when 40% is reduced ie 2x/5 is reduced.
so new cost of an orange is 3x/5.
f0r 12 Rs we get (y + 4) oranges.
(3x/5)(y+4)=12.............
from above 2 equation we get x= 2. ie
2 Rs for an orange.
so we get 12 oranges for 24 Rs.
answers is 12. - 12 years agoHelpfull: Yes(1) No(0)
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