Question
A boat moves downstream at 45 km/h, which is (25/10) m/s
faster than its upstream speed. If it covers (D + 24) km downstream and (D - 36) km upstream in a total of 8.5 hours, find the approximate value of ‘D’.Solution
ATQ, Upstream speed = 45 - (25/10) × (18/5) = 45 - 9 = 36 km/h Multiply throughout by LCM of 45 and 36 → LCM = 180 Or, 4 × (D + 24) + 5 × (D - 36) = 8.5 × 180 Or, 4D + 96 + 5D - 180 = 1530 Or, 9D - 84 = 1530 Or, 9D = 1614 Or, D = 179.33 Approximate value: D ≈ 179
Which data analytics technique is suitable for handling missing data points in a dataset?
The dynamic memory allocation is the memory allocation done at the _________.
Which of these can be overloaded?
Which of the following is a valid token in lexical analysis?
What does a "Shared Lock" in a DBMS locking protocol allow?
Consider a 4-way set associative cache consisting of 128 lines with a line size of 64 words. The CPU generates a 20-bit address of a word in main memor...
In dynamic programming, what is memoization?
What is the minimum no. of variables/ features required to perform clustering?
What is the basic component of an electronic circuit that restricts the flow of current?
When designing a sequential circuit, what is the purpose of flip-flops or latches?
Relevant for Exams:
