Question
In a mixture, milk and water are in the ratio 2:3. When
10 litres of milk and 6 litres of water are added, the ratio becomes 4:5. Find the initial quantity of the mixture.Solution
Let the initial quantity of milk and water be '2y' and '3y' litres respectively.
So, (2y + 10):(3y + 6) = 4:5
Or, 5 × (2y + 10) = 4 × (3y + 6)
Or, 10y + 50 = 12y + 24
Or, 2y = 26
Or, y = 13
Therefore, required quantity = 2y + 3y = 5y = 5 × 13 = 65 litres
If the consonants of the following words are arranged first, followed by the vowels as per the English alphabetical order and then the consonants are ch...
If all the digits of the number 7859888678 are arranged in increasing order, then sum of 5 th and 6 th digits (from the left end) of the number thus for...
If it is possible to form a meaningful English word by using the 2nd, 4th, 5th, and 8th letter (from the left end) of the word ‘...
Given below are four combinations [i], [ii], [iii] and [iv] of five words. In each combination you have to arrange the letters in English alphabetical o...
If in the word DOMINATE, first all the consonants are arranged in alphabetical order from left to right and then all vowels are arranged in alphabetical...
How many pairs of letters in the word INTERNET has the same number of letters between them as in the English alphabet?
How many such pairs of letter in the word DUPLICATE, each of which has as many letters between them in the word(in both forward and backward directions ...
If all the consonants in the word ‘PLACEMENTS’ are replaced by their second succeeding letter (in the alphabetical series) and then the letters are ...
How many such pairs of letters are there in the word ‘EMERGENCY’ each of which has as many letters between them in the word in forward and backward ...
How many pairs of letters are there in the word “CATERING” which have as many letters between them in the word as in the alphabetical series?
