Question

Two years ago, Ravi used to purchase 2 mangoes more than
today which he can afford at `40. If the price is raised by
20%, then what is the cost of a dozen mangoes today?

Answer 1

Step-by-step explanation:

Let the price of 1 mango before increase = x.

With increase in 20 % price, the new price of 1 mango = 1.2x

Equation can be setup as:

Mangoes which can be bought from 40 Rs = 40/Price of each mango.

40/x - 40/1.2x = 4

(40/x){0.2/1.2} = 4

=> 40 = 4*0.6x = 24 x

=> x = 40/24 =5/3 rs

So price of 15 mangoes before increase = 15 x = 15 * 5/3 = 25 Rs

i hope it's helpful for you

Answer 2

Answer:

Rs. 48 for dozen mango

Explanation

Price * Consumption = Expenditure

Consider initial price (2 yrs ago) = 100 x

Now current price = 120 x ( since 20% increase)

initial price : current price = 100x : 120x

initial price : current price= 5x : 6x

Considering the Expenditure is same (both 40)

we can tell

Initial consumption : current Consumption = 6x : 5x

difference in Consumption = 2 mango

6x-5x = 2

x = 2

Hence initial consumption for Rs 40 = 6x = 12 mango

current Consumption for Rs 40 = 5x = 10 mango

Price of each mango = 40/10 = Rs 4 per mango

For dozen mango = 12 * 4 = Rs. 48

(or)

let Cost of mango 2 years ago = x

current price (20% increase) = 120x/100

40/x -40/1.2x = 2

8/1.2x = 2

x = 4/1.2

cost of 1 mango (current price) =120/100 *(4/1.2) = 4

Dozen mango = 12*4 = 48