Downstream speed of the boat = 185/5 = 37 km/hr Upstream speed of the boat = 120/12 = 10 km/hr Speed of boat in still water = (37 + 20)/2 = 23.5 km/hr
A man spends 25% of his monthly salary on Rent and 32% on Groceries. He invest remaining monthly salary in the ratio of 11: 5 in Mutual Funds and Fixed ...
Milk contains 6% water. What quantity of pure milk should be added to 12 litres of milk to reduce the quantity of water to 3%?
Monthly income of A is Rs. 75000 out of which he spent 23%, 16% and 28% of his total income in rent, medicine and transportation, respectively. Find his...
A bag contains 650 coins of 25p denomination and 1300 coins of 50p denominations. If 19% of 25p coins and 38% of 50p coins are removed, the percentage o...
A Company allow 8% commission on the total sales to its salesman but if the salesman is appointed on a fix salary of Rs. 10000 and 6% commission on the...
Ritesh allocates 80% of his monthly income to expenses and saves Rs. 7000. Rishav, whose monthly income is 20% lower than Ritesh's, spends 75% of his in...
Monthly savings of X is 50% of his monthly income which is Rs. 9000. If ratio of monthly expenditure of Y and X is 15:8 respectively and monthly savings...
In an election two candidates participated. 10% voters did not vote. 11(1/9) % votes declared invalid and the winner got 50% of the valid votes. If he w...
The respective ratio of monthly income of A to monthly income of B is 8:9, and A’s saving is (100/9)% more than B’s saving. Find the expenditure of ...
