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Let the speed of the boat in still water = 40 km/hr And the speed of the current = 3 km/hr Time = 3 hours 8 minutes = 25/8 hrs Downstream speed = 40 + 3 = 43 km/hr Upstream speed = 40 – 3 = 37 km/hr Distance = Downstream speed × Downstream time Distance = [43 × (25/8)] km Upstream time = Distance / Upstream speed Upstream time = [43 × (25/8)]/37 = 3(2/3) hrs
(74.93% of 640.11 + 3/4 of 359.79)² - (1/3 of 80.87 × 2)² = ?
(800.08% of 20 - 82.16 x 2.94) = ?
150.04% of 800.08 + 20.04% of 749.89 = ? + 322.02
The profit earned when an article is sold for Rs. 2,000 is the same as the loss incurred on selling it for Rs. 1,200. Find the selling price of the arti...
Which of the following options is the closest approximate value which will come in place of question mark (?) in the following equation?
26.52 ×...
657.94 + 335.21 - 211.09 - 82.30 = ?
(115.25 + 324.78) ÷ 4.99 = ?2 – 56.44
245.67 + 20.05² + ?³ = √961.89 * 34.02
157.78% of 4820 + 92.33% of 2840 = ? + 115.55% of 1980
1219.98 ÷ 30.48 × 15.12 = ? × 2.16