Question
A 330 gm mixture contains two components 'P' and 'Q' such
that the quantity of 'P' is 20% more than that of 'Q'. After adding 'K' gm of 'P', the ratio of 'P' to 'Q' becomes 4:3. Find K% of the final mixture weight.Solution
ATQ,
Let quantity of 'Q' = 15y
Then quantity of 'P' = (6/5) × 15y = 18y
So total = 15y + 18y = 33y
33y = 330 ⇒ y = 10
Initial 'Q' = 15 × 10 = 150 gm
Initial 'P' = 18 × 10 = 180 gm
ATQ:
(180 + K) : 150 = 4 : 3
Or, 3 × (180 + K) = 4 × 150
Or, 540 + 3K = 600
Or, 3K = 60
Or, K = 20
Final mixture = 330 + 20 = 350 gm
Required value = 0.2 × 350 = 70 gm
Under the Constitution of India, the safety, welfare and health of workers employed in mines are the concern of ___.
Assertion (A): In the organizational structure of the modern companies, the trend is towards wider span of control.
Reason (R): Narrow span of ...
Consider the following statements:
(1) Article 21 talks about the protection of life and personal liberty.
(2) Article 21 is a part of t...
Consider the following statements :
1. Falkland Islands are situated in Pacific Ocean.
2. Red Sea separates Sudan from Egypt.
Out of the given words, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different fro...
A convex mirror used as a rear-view mirror of a car has a focal length of 2 m. If a bus is located at a distance of 3 m from the mirror, where will its ...
Which one of the following concerns prepares Receipts and Payments Account?
Which of the following statements are correct regarding “Mid-day meal scheme”?
I. It is implemented by “The Minist...
After which constitutional amendment the Santali Language was added in the 8th Schedule as official language?
In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Which numbers should repla...