Let the speed of the boat in still water and the speed of the current be ‘x’ km/hr and ‘y’ km/hr, respectively Upstream speed of the boat = (x – y) = 75/5 = 15 km/hr Or, 26 – y = 15 Or, y = 26 – 15 = 11 km/hr Therefore, downstream speed of the boat = 26 + 11 = 37 km/hr Required time taken = 111/37 = 3 hours
The difference between the two digits of a two-digit number is 5. What is the number?
I. The digit at the unit’s place is bigger than the t...
In how many days 8 boys and 6 girls can complete the work working together?
Statement I: The ratio of efficiency of boy to girl is 3:1
What is the speed of a boat in still water?
Statement I: The boat covers a distance of 120km in 5 hours while running upstream.
Statem...
In an institute employing managers, observers and assistants, what is the monthly salary of an assistant?
I. Each observer gets Rs 16,000 per mon...
What is the capacity of a cylindrical tank?
I. The radius of the base is half of its height, which is 14metres.
II. The area of the base i...
A man invested a sum of Rs 60,000. He invested some part at 8 % p.a. and remaining at 8.5% p.a. How much money did he invest at 8 % p.a.? Statement I: ...
Determine the time taken by a pipe R to empty a water tank.
Statement I: Pipe P and pipe Q can fill a water tank in 6 ho...
By selling an article Rs. 20,000, what is the profit or loss percent gained.
I. 20% discount given on marked price.
II. Cost price is...
The mixture contains Lemon and Mango juice in the ratio of 9:5? Find the value of 'a' and 'p'
Statement I: After removing 392 ml of the mixture...
What is the area of the hall?
I: Total cost (Labour + Material) of flooring the hall is Rs. 29,000
II: Labour cost of flooring the hall is...
