After increase in the price of coffee by 20 %, a person is able to buy 4 kg less for Rs. 1,440. Find the original and increased price of the coffee per kg.
Let the original price (O.P.) be Rs. x per kg. ∴ New price (N.P.) = 120% of x = Rs. 6x/5 per kg. Quantity of coffee the person could buy at original price = 1440/x kg. Quantity of coffee he can buy at new price = (1440 × 5)/6x = 1200/x kg Given that difference between the quantity at original price and at new price is 3 kg. ∴ 1440/x - 1200/x = 4 ⇒ 240/x = 4 ⇒ = 60 ∴ O.P. = Rs.60 and N.P. = Rs. 6x/5 = (6 × 60)/5 = Rs.72
How is D related to E?
Z, the son-in-law of K, is the brother-in-law of G who is the brother of D.D is the daughter of K. How is G related to K?
Ankit and Mohit are brothers. Shikha and Shweta are sisters. Ankit’s son is Shweta’s brother. How Mohit is related to Shikha?
If “J#K^P%R#O”, then How O is related to J?
How is A related to E?
How is R's daughter related to U's daughter?
Introducing a woman, a man said, 'Her sister’s mother is the only daughter of my grandmother.' How is the man related to this woman?
How is H related to I?
How is L related to M?
Which of the following is definitely true?