Due to decrease of 10% in the price of tea per kg, a consumer buys 250gm of tea more than before for Rs. 270. What is the original price of tea ?
Let the original price of tea be a Rs per kg and original weight of tea bought by consumer be b kg
a x b = 270 ( let this equation be 1)
Now due to decrease in price by 10 percent the new prices become 0.9 times the original and as a result consumption increases by 0.25 kg without spending any extra money .
So, 0.9a x (b+0.25) = 270 (let this equation be 2)
From equation 1 and 2
0.9ab + 0.225a = 270
0.225a = 270 - 243
a = 120/kg
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
