Competitive Exam

Average question bank (Quantitative Aptitude)

Practice 388 free Competitive Exam Quantitative Aptitude - Average questions with answers and step-by-step solutions.

Q1.

$A$ cyclist goes from one place to another and returns by the same route. He pedals his way uniformly with speed $u$ while going and with speed $v$ while returning. The average speed of his journey is

(A)
$\frac{u+v}{2}$
(B)
$\frac{u-v}{2}$
(C)
$\frac{1}{\frac{1}{2}(\frac{1}{u}+\frac{1}{v})}$
(D)
$\frac{1}{\frac{1}{2}(\frac{1}{u}-\frac{1}{v})}$
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Q2.

$A$ student bought $4$ books for $Rs. 120$ from one book shop and $6$ books for $Rs. 150$ from another. The average price (in rupees),he paid per book was

(A)
$27$
(B)
$27.50$
(C)
$135$
(D)
$138$
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