Advertisements
Advertisements
प्रश्न
The price of rice increased by 20%, as a result, a person can have 5 kg of rice for ₹ 600. What was the initial price of rice per kg?
उत्तर
A person can buy 5 kg of rice for ₹ 600 after the increase in price
∴ The new price of rice = `600/5` = ₹ 120/kg ...(i)
Let ‘x’ be the initial price per kg of rice.
There is a 20% increase in the price of rice.
Thus the new price of the rice will be given as
`"x"(1 + 20/100)`
Equation with (i), we get
`"x"(1 + 20/100) = 120`
∴ `"x"((100 + 20)/100) = 120`
∴ `(120"x")/100 = 120`
∴ x = 100
∴ The initial price of rice is ₹ 100 per kg
APPEARS IN
संबंधित प्रश्न
Find 77% of 580 + 34% of 390.
240 candidates appeared for an examination, of which 204 passed. What is the pass percentage?
What percent of 8.4 kg are 168 grams?
If the length of a rectangle is decreased by 20%, what should be the increase in the breadth of the rectangle so that the area remains the same?
What percent is 3% of 5%?
After availing two successive discounts of 20% each, Madhavi paid Rs 64 for a book. If she would have got only one discount of 20%, how much additional amount would she have paid?
The price of the table is 40% more than the price of a chair. By what percent price of a chair is less than the price of a table?
A batsman scored 92 runs which included 4 boundaries 5 sixes. He scored other runs buy running between the wickets. What percent of his total score did he make by running between the wickets?
Rose got 30% of the maximum marks in an examination and failed by 10 marks. However, Lily who appeared for the same examination got 40% of the total marks and got 15 marks more than the passing marks. What were the passing marks in the examination?
By selling 300 lunch boxes, a shopkeeper gains the selling price of 100 lunch boxes. Find his gain percentage.
