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Start learning 50% faster. Sign in nowLet the length of train be x m. According to the question, => 90 x (5/18) = x/16 => x = 400 m Length of the platform = 400 x (13/8) = 650 m {Speed conversion = 90km/hr = 90 × (5/18)m/s = 25 m/s} Required time = (400 + 650)/25 = 42 seconds
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Monthly income of P is Rs.19000 and his monthly savings is Rs.9500. If his monthly income is decreased by 30% and monthly expenditure is decreased by 20...
Income of Vipin is Rs.36000 and he saves 60% of his income. The expenditure of Sahil is Rs.2600 more than that of Vipin and he saves 66% of his income. ...
Lalit buys wheat at Rs. 20/kg and puts a price tag on it so as to earn a profit of 30%. However, his faulty balance shows 1000 gm when it is actually 60...
A money lender finds that due to a fall in the annual rate of interest from 10% to 8(3/4)%, his year's income diminishes by ₹84.50. Find his capital.
Monthly income of P is Rs.14000 and his monthly savings is Rs.8500. If his monthly income is decreased by 30% and monthly expenditure is decreased by 25...
Monthly income of A is Rs. 12000 and he saves 44% of his monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is in...
The number of boys and girls in a school is 250 and 300 respectively. 20% of boys left the school while 40 girls took admission in the school. Find the ...
