Question
180 litres of a mixture contains 36% milk and rest
water. If βxβ litres of milk is added into the mixture then quantity of water in the final mixture becomes 60% of total quantity of mixture. Find the value of βxβ.Solution
Quantity of milk in the initial mixture = 180 Γ 0.36 = 64.8 litres Quantity of water in the initial mixture = 180 β 64.8 = 115.2 litres Quantity of water is unchanged in the final mixture. So, Quantity of final mixture = (76.8/60) Γ 100 = 192 litres Quantity of milk in final mixture = 192 β 115.2 = 76.8 litres Value of βxβ = 76.8 β 64.8 = 12
How many different words can be formed with the letters of the word PRACTICE such that each of the word begin with E and ends with R?
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "CAMPFIRE"?
A team of 6 members is to be formed from a group of 7 boys and 6 girls. Find the number of ways to form team such that the team consists of at most 3 gi...
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "SEMINAR"?
A team of 4 men and 2 women is to be selected out of 8 men and 4 women. If only one man and one woman remain in the team, then what will be the total nu...
In how many ways can 4 boys and 3 girls can be seated in a row so that they are in alternate position.
In how many different ways can the letters of the word ‘PADDLED’ be arranged?
Find total number of ways in which the word βBOOKKEEPERβ can be arranged.
Five articles out of which 3 are cups and rest are glasses have to be arranged on a shelf. Find the number of ways of arrangement in which all three cup...
Find the number of ways to arrange each letter of the word 'PROFESSION' such that all the vowels always come together.