Question
P, Q and R three pipes connected to a tank. P and Q
together fill the tank in 30 hours, Q and R together fill the tank in 40 hours. P and R together fill the tank in 60 hours. In how much time will P, Q and R fill the tank separately?Solution
A + B fill in 30 hrs B + C fill in 40 hrs A + C fill in 60 hrs 2(A + B + C) fill in (30 × 40 × 60) ÷ (30 × 40 + 40 × 60 + 60 × 30) = 40/3 hours Therefore A + B + C fill the tank in 80/3 hours Now, A = (A + B + C) – (B + C) fills in (3/80 - 1/40) = 1/80 = 80 hours Similarly B fills in (3/80 - 1/60) = 1/24 = 48 hours And C fills in (3/80 - 1/30) = 1/240 = 240 hours.
I will reach there at 12 AM (a) / but don’t worry when (b) / I am late. (c) / No error (d)
On the time (a) / of the opening ceremony of the theatre (b) / a large crowd had assembled (c) / No error (d)
Several Western policy commentators are aghast (1)/as to why India is unwilling to endure some economic pain (2)/to send a loud and clear message that ...
Identify the segment in the sentence which contains the grammatical error from the given options. If there is no error, select No error.
No one i...
Parts of the following sentence are given as options. Identify the segment that contains a grammatical error.
Each one of the children in a nur...
Find the error and mark the correct option. If there is no error, choose option E.
A. The seminar emphasized that sustainable agriculture is no...
Directions: In each of the questions, a sentence has been divided into four parts, one of which may contain an error. Identify that fragment and mark i...
The engineer came (1)/out to a novel (2)/solution which may even(3)/ reduce daily energy consumption.(4)
The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
Did you forgot / to post / the ...
Each sentence is divided into five parts (a), (b), (c), (d) and (e). One of these parts may contain an error. Identify the part that contains the error...
Relevant for Exams:
