Question
Train 'R' can cross a pole in 6 seconds and a 240 metres
long bridge in 10 seconds. Train 'S' whose length is 75% of the length of train 'R' runs in the same direction of train 'R'. If train 'S' crosses train 'R' in 14 seconds, then find the speed of train 'S'.Solution
Let the length and the speed of the train 'R' be 'x' metres and 's' m/s.
ATQ,
(x/s) = 6
So, 'x' = 6s.........(i)
Also, {(x + 240) ÷ s} = 10
Or, 6s + 240 = 10s [from equation (i)]
Or, 240 = (10s - 6s)
Or, 's' = (240/4) = 60
Length of train 'R' = (6 × 60) = 360 metres
So, length of train 'S' = (360 × 0.75) = 270 metres
Let the speed of train 'S' be 't' m/s.
ATQ,
(360 + 270) ÷ (t - 60) = 14
Or, 630 = 14 × (t - 60)
Or, (t - 60) = 45
So, 't' = 45 + 60 = 105
Therefore, speed of train 'S' = 105 m/s
Which of the following is the richest source of calcium/100 g of food?
Which of the following is a phytotoxin?
Food ______ is defined as decomposition and damage caused to food by various agents making it unsuitable for human consumption.
The recommended strength of chlorinated water used for sanitizing heavily soiled vegetables should not exceed:
Which of the following statements are correct with respect to sugar alcohols?
Options:
1. They may be found in foods that are labelled ...
In which of the following cooking methods, does the internal temperature of food exceed 100° C?
Food allergies happen when the body’s ______ system mistakenly treats proteins found in food as a threat.
Which of the following statements are correct with respect to INS for Food Additives?
Options:
1. INS stands for International Numberin...
The mandatory symbol on every package of food material sold in retail but not meant for human consumption is:
The term used to describe radiation sterilization which implies high dose treatments making the product shelf stable is:
