Question
A train started from station P and preceded towards
station Q at a speed of 98 km/h. 30 minutes later, another train started from station Q and preceded towards station P at 100 km/h. If the distance between the two stations is 643 km, at what distance from station P will the trains meet?Solution
Let the train will meet ‘t’ hours after the train from station Q started Distance travelled by train started from station P = 98 x 30/60 km Distance travelled by train started from station Q = (98 + 100) x t km Total distance between station P and Q = 643 km Now, 98 x (30/60) + (98 + 100) x t = 643 ⇒ 49 + 198t = 643 ⇒ 198t = 643 – 49 = 594 ⇒ t = 594/198 = 3 hours Distance travelled by train starting from station P at all meeting point = 49 + 98 x 3 = 343 km
- If we arrange all the vowels of the word "PLAYLIST" in ascending order first and then all the consonants in ascending order as per English alphabetical ser...
If in the word ‘INCREAMENT’ all vowels are replaced with the preceding letter and all the consonant are replaced with the succeeding letter accordin...
How many pairs of letters are there in the word "CLEANING" which has as many letters between them (both forward and backward) in the word as in the Eng...
If in the number '6734414234', 2 is added to all the odd place digits and 1 is subtracted from the even place digits (from the left end) and then all t...
If in the word DOMINATE, first all the consonants are arranged in alphabetical order from left to right and then all vowels are arranged in alphabetical...
If it is possible to make a four letter meaningful word using, 3rd, 6th, 8th and 10th letters of the word ‘SUGGESTION’, then what is the 2nd letter...
In the given words, if the 3rd and 6th (from the left end) letters are exchanged and same is done with 4th and 9th...
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘JUGGLING’ is arranged in alphabetical order...
How many pairs of letters in the word POSITIVE has the same number of letters between them as in the alphabet?
How many pairs of letters are there in the word "NONSENSE" which has as many letters between them in the words as in English alphabetical series (both ...
Relevant for Exams:
