A boy can swim in water with a speed of 16 km/hr in still water. If the speed of the stream is 9 km/hr, what will be the time taken by the boy to cover 50 km downstream?
Downstream Speed = (16 + 9) km/hr = 25 km/hr Time taken = 50/25 = 2 hours
Monthly income of A is Rs. 60000 out of which he spent 22%, 9% and 24% of his total income in rent, medicine and transportation, respectively. Find his ...
Alloy A contains copper and zinc in the ratio 4:5 and alloy B contains copper and zinc in the ratio 7:2. A and B are taken in the ratio 7:4 and melted t...
if ratio of present age of Aman to that of Bineet is given as 2:3 and the ratio of present age of Aman to that of Chintu is 13:8.Then, what will be the ...
Determine the percentage of people (males and females combined) who tested negative for corona when 1200 males and 800 females were tested, with 45% of ...
Vipul decided to donate 5% of his salary. On the day of donation he changed his mind and donated Rs. 1687.50, which was 75% of what he had decided earli...
Income of A is twice the income of B. B and A spend 70% and 80% respectively of their incomes. Find the savings of A, if B saves Rs. 21000 in a month.
The income of ‘A’ increases by 35% every year. If the present income of ‘A’ is Rs. 45562.5 and his expenditure 2 years ago from now was Rs. 1200...
A shopkeeper charges sales tax of x% up to Rs, 2000 and above it he charges y%. A customer pays a total tax of Rs. 320, when he purchases the goods wort...
A student has to obtain 35% of the total marks to pass. He got 214 marks and failed by 31 marks. What are the maximum marks?
A girl spent 30% of her monthly income on clothing. Of the remaining, she spent on travel and food in the ratio of 4:3. If the difference of the income ...
