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
Fill in the blanks with the correct alternatives from the choices given below them.
Ten thousand rupees _____distributed among the prize winnersÂ
Fill in the blanks in the following sentences with suitable adjectives and determiners.
_____ the girls were present in the function
Insert suitable articles wherever they are missing from the alternatives given below each sentence.
Indian Govt, wants to build strong India
Fill in the blanks with suitable articles from among the choices given below them.
He is known as ____ Bhishma of our times.
Fill in the blanks in the following sentences with suitable adjectives and determiners.
My ____ brother is an IAS officerÂ
Choose the correct Article.
______________ honest politician is a rarity these days.
Fill in the blanks with the correct alternatives from the choices given below them.
The great composer and singer ____in our midstÂ
Insert suitable articles wherever they are missing from the alternatives given below each sentence.
She has never touched onion.
Parts of the following sentence have been given as options. Select the option that contains an error.
Please pass me an piece of chalk that I can...
___________ David Dickson award for ____________ best performance in the Commonwealth Games is presented to one athlete.
Relevant for Exams:
