Question
Oil worth Rs. 50/litre and Rs. 60/litre are mixed with a
third variety in the ratio 4:3:1 respectively. If the final mixture is worth Rs. 54/litre, then the price of the third variety of oil is:Solution
Let the quantity of three varieties of oil in the new mixture be ‘4x’ litres, ‘3x’ litres, and ‘x’ litre respectively
Let the price of the third variety of oil be Rs. ‘y’/litre
ATQ:
(50 × 4x) + (60 × 3x) + (y × x) = 54 × (4x + 3x + x)
Or, 200x + 180x + xy = 54 × 8x
Or, 380x + xy = 432x
Or, xy = 52x
Or, y = 52
So, the price of the third variety of oil = Rs. 52/litre
What T20I record did Jos Buttler achieve in June 2025?
What is the revised repo rate as per RBI's monetary policy updates in 2025?
Where is the new Centre of Excellence for Financial Audit being set up by the CAG of India?
Who was the President of South Korea who visited India in April 2026?
The new National Accounts series based on 2022–23 will be released on:
Paras Dogra achieved the milestone of 10,000 Ranji Trophy runs in his:
What is the projected household savings in India for FY25, according to SBI?
Which bank was penalized by the RBI for regularizing NPAs without proper repayment sources?
How many Cheetahs will be translocated from Botswana to India under the announced pact?
What is the new name of the National Institute of Public Cooperation and Child Development (NIPCCD)?
Relevant for Exams:
