Downstream speed of the boat = 130/10 = 13 km/hr Upstream speed of the boat = 120/8 = 15 km/hr Speed of boat in still water = (13 + 15)/2 = 14 km/hr
Find the number of zeroes in expression:
(3123 – 3122 - 3121) (2121 – 2120 - 2
Consider three numbers whose total is 294. The first and second numbers are in a ratio of 5:7, and the second and third numbers are in a ratio of 7:9. D...
How many integers are there between 50 and 600 that are divisible by both 15 and 25?
Find the number whose four-fifth is more than its three-fourth by 5.
In a kilometre race, A beats B by 30 metres or 6 seconds. Find the time taken by A to finish the race?
What is the difference between 3/5 of 150 and 1/2 of 300?
There are five numbers A, B, C, D and E. The ratio between the numbers of B and D is (y+1) : 3 respectively. The number C is 12.5% more than the number ...
For which range of 'p' does the expression 19p - 2p²- 35 have a positive value??
How many numbers up to 800 are divisible by both 3 and 5?
