Get Started with ixamBee
Start learning 50% faster. Sign in now
Let the speed of boat in still water be ‘x’ km/h
Speed of stream = 0.30 × x = ‘0.3x’ km/h
Speed of boat in upstream = x – 0.3x = 0.7x km/h
So, 0.7x = 84/2
Or, 0.7x = 42
Or, x = 60
So, speed of boat in still water = 60 km/h
And, speed of stream = 60 × 0.3 = 18 km/h
Time required to cover 156 km in downstream = {156/(18 + 60)} = 2 hours
The income of Tina is Rs.20000 and she saves 25% of her income. The savings of Kajal is Rs.1200 more than that of Tina and she spends 50% of her income....
Aman allocated 40% of his monthly income for purchasing newspapers and then spent 52% of the remaining amount on food, saving the rest. If the amount sa...
Rahul saves Rs. 5800 more if he spends 55% of his income instead of 75%. Find the savings of Sumit whose income is 20% more than that of Rahul, and spen...
In a company-wide survey, it was discovered that 20% of the employees own a car. Among the remaining employees, 30% have either an Activa or a bike. The...
In a city, the number of persons travelling by bike is 62.5% the number of persons travelling by metro. The number of persons travelling on foot is 60% ...
The marked price of an article is 30% higher than the cost price. If a trader sells the articles allowing 10% discount to customer, then the gain percen...
A man invested all his current month income in starting of a new business in which he spends 40% in advertisement 20% of remaining in furniture 10% of r...
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 ...
A quantity is increased by 60% at first, and later decreased by 45%. Calculate the net percentage change.
A spent 20% of his monthly income on study and 70% of the remaining on rent. If amount spent on rent is Rs. 840, then find the amount spent on study
