Question
A number is more than 21 times its reciprocal by 4. What
is the number?Solution
ATQ,
Let the number be x. Then its reciprocal is 1/x. Given: x - 21*(1/x) = 4 x - 21/x = 4 Multiply by x: x^2 - 21 = 4x x^2 - 4x - 21 = 0 Factor: (x - 7)(x + 3) = 0 So: x = 7 or x = -3 If the number is taken as positive: x = 7
A statement is given followed by two conclusions I and II. Consider the given statement as true and decide which of the given conclusions logically fol...
In the question below, a situation is given, followed by two statements that may or may not be concluded from the situation. Select the option that cont...
In each group of questions below are two conclusions followed by five set of statements. You have to choose the correct set of statements that logicall...
Consider the given statements to be true even if they seems to be at variance with the commonly known facts and decide which of the given conclusions lo...
Statements: I > F = A ≤ M = S > T ≥ O = X
Conclusion
I: X < M
II: S ≥ F
Two statements have been given followed by two conclusions (I) and (II). Assuming the statements to be true, even if they seem to be at variance from co...
Statements: A > B; C > D; E ≥ A; F = C; C < B
Conclusions:
(i) B > D
(ii) A > F
(iii) F < E
Statements: W < V < X; V > Y ≤ Z
Conclusions: I. W ≤ Z                                    II. X > Z
Statements:
No truck is a bus.
All bus are train. Â
Only a few train are car.
Conclusions:
I. All bus may be car.
A statement is given, followed by few conclusions. You must assume everything in the statement to be true, and on the basis of the information given in ...
Relevant for Exams:
