Question
Three mixtures: A, B, and C containing 25%, 35%, and X%
of water, respectively. If all these mixtures are mixed in the ratio of 1:3:2 to form a resultant mixture, and the resultant mixture contains 30% of water in it, then find the value of X.Solution
ATQ, Let the quantity of mixture A, B, and C mixed be 100 litres, 300 litres, and 200 litres, respectively. Quantity of water in mixture A, B, and C is 25 litres, 105 litres, and 2X litres, respectively. According to the question, (25 + 105 + 2X)/600 = 30/100 130 + 2X = 180 2X = 50 X = 25
Determine the smallest four-digit number that is evenly divisible by 12, 22, and 42.
A number lies between the cubes of 13 and 14. If the number is divisible by 6 as well as square of 16. Find the number.
The arithmetic mean of two values ‘a’ and ‘b’ is 16, and their geometric mean is 10√2. Find the positive difference between the numbers, given...
When a number is divided by 19 remainder is 7. Find the remainder when four times of the same number is divided by 19.
Find 999 × 37 quickly.
- Find the remainder if
Find the least positive number which leaves remainders 5, 6 and 7 when divided by 8, 9 and 10 respectively.
What is the average of all the prime numbers which are less than 35?
The value of
- 37.5% of 24% of 840 = y + 12.6, then find the sum of squares of each digit of 'y'.
Relevant for Exams:
