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Let the speed of boat B in still water be x km/hr. Therefore, the speed of boat A in still water =0.75x km/hr. According to the question, 0.75x + x = 70 Or, 1.75x = 70 Or x = 40 Therefore, the speed of boat B in still water = x =40 km/hr. Speed of boat A in still water = 0.75x = .75×40=30km/hr. Let the speed of the current be ‘y’ km/hr. Downstream speed of boat B = (40 + y) km/hr. Upstream speed of boat A = (30 – y) km/hr. 0.12(40 + y) = 30 – y Or, 4.8 + 0.12y = 30 – y Or, 0.12y + y = 30 – 4.8 1.12y =25.2 y=25.2/1.12=22.5 therefore, speed of the current =22.5km/hr.
Their relationship will not last long. /No error
She suggested that / we should start the meeting / as soon as everyone arrives / to avoid any delays.
Farmers organisations has (1)/also been complaining about (2)/scarcity of fertilizers and (3)/increase in its price (4).
In the paragraphs given below count the number of grammatical errors and mark that as your answer.
The following sentence has been divided into parts. One of them contains an error. Select the part that contains the error from the given options.
...The committee recently deferred the decision followed a report of the International Union for Conservation of Nature.
In Saturday, New York detected (A)/three more cases of the omicron variant, (B)/bringing the total number (C)/of the statersquo;s cases to eight (D).
