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ATQ, Let the speed of the stream be 'x' km/hr Therefore, speed of the boat in still water = 'x' + 7x = '8x' km/hr According to the question, Downstream speed of the boat = 8x + x = (225/5) = 45 Or, 9x = 45 Or, x = (45/9) = 5 Therefore, upstream speed of the boat = 8x - x = 7x = 7 X 5 = 35 km/hr Therefore, required time taken = (84/35) = 2.4 hours
A number is initially increased by 37.5% and then reduced by 40%. The final value obtained after these changes is 6,270. Determine 80% of the original n...
Mohit purchased some toffees at a rate of Rs 20 for every 50 toffees. Additionally, he bought twice as many toffees at a price of Rs 1.50 per piece. He ...
Find the largest number that, when dividing 259, 323, and 640, leaves remainders of 4, 8, and 10, respectively.
87.5% of the voters in State 'P' is equivalent to 10/11 of the voters in State 'Q', and 10/11 of the voters in State 'Q' is equal to 93.75% of the vot...
Which of the following should be replaced with # in the number 12324#84 so that it becomes a multiple of 8?
Find the average of first 7 whole numbers.
The sum of four consecutive counting numbers is 154. Find the smallest number?
Which pair of these numbers is cop rime?
