Question
A train service was disrupted due to an accident after a
travel of 30 km. The speed was reduced to three-fourths of the original speed. This caused a delay of 45 min. If the accident had happened 18 km farther, it would have been running late for 36 min. What was the original speed of the train?Solution
Let the speed of the train be x. We know that.  Speed = Distance/Time Speed after accident = 3/4 of x = 3x/4 According to the question, The time difference in covering 18 km due to change in speed = 45 - 36 = 9 min 18/(3x/4) -(18/x) =9/60 72/3x)-18/x=9/60  x = 40 km/h  The original speed of the train is 40 Km/h.
Choose the one which best expresses the meaning of the given word .
Euphoria
Choose the correct synonym for the given wordÂ
Pedestrian Â
Warrior : Sword :: Surgeon :Â ?
In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.
INCONVEN...
Something no longer in use
Choose the antonym of the bold word.
His remarks were ambiguous , leaving everyone confused.
A) Annihilate B) Convention C) Rout D) Exuberant
...Unique
Intestate
- Select the most appropriate ANTONYM of the underlined word.
Her explanation was so ambiguous that none of us could understand the main point.
...
Relevant for Exams:
