Question
Two mixtures (milk and water) 'A' and 'B' contains
quantities of milk and water in ratio of 6:4 and 2:8, respectively. If 50 ml from 'A' and 40 ml from 'B' are mixed to form a new mixture, then find the percentage of milk in the new mixture.Solution
Quantity of milk in 50 ml of mixture 'A' = 50 Γ (6/10) = 30 ml
Quantity of milk in 40 ml of mixture 'B' = 40 Γ (2/10) = 8 ml
Total quantity of final mixture = (50 + 40) = 90 ml
Required percentage = ((30 + 8) Γ· 90) Γ 100 = 38/90 Γ 100 = 42.22% β 42%
- If 85% of a number is added to itself, the result exceeds the original number by 51. Find the final number obtained.
Find the unit digit of (57 129 Β - 7).
Find the smallest 5-digit number which is exactly divisible by 36.
The number of females in a company is 20% fewer than the number of males. After 10 males and 16 females join the company, the number of males becomes ha...
What is the place value of 3 in 3678921410.
1. 3 Γ104
2. 3 Γ107
3. 3 Γ105
4. 3 Γ109
How many integers between 100 and 750 are divisible by both 18 and 24?
Which of the following should be replaced with # in the number 12324#84 so that it becomes a multiple of 8?
Two students appeared in an exam and one secured 18 marks more than the other. If marks of the student who got more marks is 58% of the sum of the marks...
One-seventh of a 2-digit number is 10 less than half of the number. What is the sum of the digits of the 2-digit number?
A number when divided by 21 gives a remainder of 15. What will be the remainder when twice that number is divided by 21?