Question
I. 3x2 = 2x2 + 9x – 20
II. 3y2 = 75 In the following questions, two equations numbered I and II are given. You have to solve both the equations and give answer:Solution
I. 3x2 = 2x2 + 9x – 20 => x2 - 9x + 20 = 0 => x2 - 5x – 4x + 20 = 0 => x(x – 5) – 4(x – 5) = 0 => (x – 5) (x – 4) = 0 => x = 5, 4 II. 3y2 = 75 => y2 = 25 => y = -5, 5 Hence, x = y or the relationship cannot be established.
- In a tank, the ratio of petrol to kerosene is 7:5. 50% of this mixture is removed and replaced with kerosene. Again, 50% is replaced with petrol. Find the ...
Find the next term of the sequence 1, 8, 4, 27, 9, ……
Statements: V ≥ O ≥ S = A > J, M < Y = P ≤ O > R
Conclusion:
I. O > M
II. A ≥ M
III. V > RÂ Â
If all the consonants in words are changed to the previous letter how many words have more than at least one vowel?
In the question given below, a passage is given followed by five statements which may or may not be inferred from the passage. Select the correct state...
A, a female, introduces B saying that, "She is the wife of the grandson of the father of my father". How is B related to A?
In each question below is given a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, t...
Statements:
Only Apple are Banana.
Some Apples are Pears.
Only a few Papaya is Pear.
Conclusions:
I. At least Some Pa...
If the first and the second letters of the word CIRCUMFERENCE are interchanged with the last and the second last letters respectively, and similarly the...
Identify the word which belongs to the class of given words. Ring, Bracelet, Necklace, _________