⚡ Seats filling fast: Join RBI Grade B Exclusive course @ ₹10,000 ⚡ ⏰
Question
Speed of a boat in still water is 15 km/h while the
speed of the stream is ____ km/h. Total time taken by the boat to go 150 km upstream and 225 km downstream is ____ hours. The values given in which of the following options will fill the blanks in the same order to make the above statement true: A. 10, 38.25 B. 5, 25 C. 8, 34.375 D. 7, 33.5Solution
According to the question: For A: Speed of boat = 15 km/h Speed of stream = 10 km/h Speed in upstream = 15 - 10 = 5 km/h Speed in downstream = 15 + 10 = 25 km/h Total time = 150/5 + 225/25 = 30 + 9 = 39 hours So, A can't be the answer. For B: Speed of boat = 15 km/h Speed of stream = 5 km/h Speed in upstream = 15 - 5 = 10 km/h Speed in downstream = 15 + 5 = 20 km/h Total time = 150/10 + 225/20 = 15 + 11.25 = 26.25 hours So, B can't be the answer. For C: Speed of boat = 15 km/h Speed of stream = 8 km/h Speed in upstream = 15 - 8 = 7 km/h Speed in downstream = 15 + 8 = 23 km/h Total time = 150/7 + 225/23 ≈ 21.43 + 9.78 ≈ 31.21 hours So, C can't be the answer. For D: Speed of boat = 15 km/h Speed of stream = 7 km/h Speed in upstream = 15 - 7 = 8 km/h Speed in downstream = 15 + 7 = 22 km/h Total time = 150/8 + 225/22 ≈ 18.75 + 10.23 ≈ 28.98 hours So, D can't be the answer
The burglar stole all the money(A)/ in the house but surprisingly missed(B)/ the jewelleries in the locker.(C)/ No error(D)
The newly proposed regulations, which seek to address the inefficiencies within the healthcare sector by encouraging private investment and fostering co...
Read the following sentence carefully, that is divided into five parts (A, B, C, D, and E). Identify the part(s) that is/are grammatically error-free an...
The amendment provides that (A)/an electoral registration officer may require (B)/an individual to furnish their Aadhaar number (C)/in order to establi...
Given below are sentences with an error in each. The error is in one part of the sentence. Below each sentence are given the options containing the par...
In the following questions, each sentence is divided into four parts, which are labelled a, b, c, and d, one of these parts may contain an error. If th...
Find out the appropriate word.
To combat another common pest, (A)/tent caterpillars, use a forked branch (B)/to winding up the webs (C)/and expose the caterpillars to predators (D). ...
- Find out the error according to the grammar and context of the given sentences. If there is no error, mark option 5, i.e. No error. (Ignore the punctuation...
The city traffic police have decided to (A)/monitor food delivery personnel flouting traffic rules (B)/and take action in the violators (C).
Relevant for Exams:
