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Speed of the train = 72 km/h = (72 × 1000) / 3600 = 20 m/s. The total distance to be covered = Length of the train + Length of the platform = 180 + 120 = 300 meters. Time = Distance / Speed = 300 / 20 = 15 seconds. Thus, the train will take 15 seconds to cross the platform. Correct option: d
A girl found the answer for the question “subtract the sum 1/2 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of ...
Virat allocates his income as follows: he spends 35% on rent and 25% on groceries. From the amount he has left, he donates 25% and saves the remainder. ...
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.
The population of the town is 270,000 4/9th of them are males and the rest are females. 50% males and 40% females are married. Find the unmarried popula...
Sahil spent 10% of his monthly income on education, 20% on entertainment, 15% on rent, 40% on travelling and the rest on food. If the difference between...
Ajay purchases an item for Rs. 1600 and incurs additional costs of 20% for maintenance and 30% for transportation. Calculate the selling price he should...
A plane can travel 36 km against the wind and 80 km with the wind in 4 hours. How much percent is the speed of the plane against the wind less than the ...
Pankaj gives 15% of her salary to his wife, 5% of the remaining amount to his children and 20% of the remaining to his parents. If Pankaj is left with R...
In an election, two candidates A and B participated. 2⁄5 of the voters promised to vote for A and rest promised to vote for B. On the voting day 25% o...
Monthly income of P is Rs.14000 and his monthly savings is Rs.7500. If his monthly income is decreased by 30% and monthly expenditure is decreased by 25...
