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ATQ, Let the upstream speed and downstream speed of the boat be x km/h and y km/h, respectively. So according to question: 66/x + 165/y = 13 ………………. (i) Also, 55/x + 110/y = 9 ……….. (ii) Solving (i) and (ii), we get x = 11 and y = 22 So, the upstream speed and downstream speed of the boat are 11 km/h and 22 km/h, respectively. Speed of the boat in still water = (11 + 22)/2 = 16.5 km/h Speed of the stream = (22 – 11)/2 = 5.5 km/h So, the desired difference = 16.5 – 5.5 = 11 km/h
The burglar stole all the money (A) / in the house but surprisingly missed (B) / the jewelleries in the locker (C) / No Error (D)
Care for the kids (A)/at school has never (B)/ been tiring, as I was (C)/born with a talent for it (D).
A unique feature of a mobile phone(A)/ is that it enables seamless telephone calls even(B)/ when the user are moving around wide areas.(C)/ No error(D)
The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
Change the given sentence into indirect form.
They said, “hurrah! we have won the match’.
The following sentence has been split into four segments. Identify the segment that contains a spelling error.
But as investors in such firms (A)/have learnt this year, the sector (B)/is not as risk adverse as (C)/had been widely perceived (D).
