Question
A delivery boy travels a certain distance from his
warehouse to the customer’s house. At a speed of 15 km/h, he arrives 18 minutes late. But when riding at a speed of (30/6) meters per second, he gets there just 6 minutes late. What is the distance between the warehouse and the customer’s house?Solution
ATQ,
Let the distance be x km
Time at 15 km/h: T1 = x/15 hours
So, Speed = (30/6) × (18/5) = 18 km/h
Now,
T1 = x/15, T2 = x/18
(x/15) - (x/18) = 12/60 = 1/5
LCM of 15 and 18 is 90
(6x - 5x)/90 = 1/5 → x/90 = 1/5
So, x = 18 km
In hypothesis testing, what does a low p-value (e.g., p < 0.05) suggest about the null hypothesis?
In the context of fraud detection in financial transactions , which of the following techniques is most effective for identifying unusual patterns or an...
In which programming language are pointers explicitly supported and used for memory manipulation?
Which method would be most effective in identifying the relationship strength between two continuous variables?
Which of the following is the main characteristic that differentiates random sampling from non-random sampling techniques?
In hypothesis testing, what does a p-value less than 0.05 typically indicate ?
In Huffman Coding, which property ensures that no code is a prefix of another?
How does supply chain optimization benefit from predictive analytics?
A company collects sales data from different regions, but the "Revenue" column uses inconsistent currency formats (USD, EUR, INR). What is the best appr...
Consider the following code snippet. What is the output of the program?
#include < stdio.h >
int main ( ) {
int arr[5] = {1...
Relevant for Exams:
