Question
A 400 ml mixture consists of 30% alcohol. Find how much
alcohol must be added so that alcohol makes up 50% of the new mixture.Solution
ATQ,
Alcohol in the current mixture = 0.30 × 400 = 120 ml
Let added alcohol be ‘x’ ml
So, 120 + x = 0.50 × (400 + x)
Or, 120 + x = 200 + 0.50x
Or, 0.50x = 80
So, x = 80 / 0.50 = 160 ml
Which two numbers and two signs should be interchanged in the following equation to make it correct?
22 - 8 + 12 x 6 + 20 = 104
Statements: F ≥ G < E, G > D ≥ C = N
Conclusions: Â Â Â Â
 I. E > N
II. F > D
What was the day of the week on 24 August 1923?
Seven persons G, H, I, J, K, L, and M have different heights. H is taller than J. H is taller than G, who is just shorter than J. L is shorter than M. O...
If 6 $ 4 $ 7 = 101 and 2 $ 5 $ 11 = 150, then what is the value of T in T $ 8 $ 9 = 289?
Statement:
Some P are Q
Some R are S
No Q is R
Conclusion:
I. Some S are P
II. No P is S
...Select the correct mirror image of the given figure when the mirror is placed to the right side of the f igure at ‘XY ’.
In a certain code, VANILLA is written as XXPFNIC. How is CARPENTER written in that code?
____ is the mother of E.
Relevant for Exams:
