Question
A, B, C, D and E are five consecutive even numbers. If
the sum of 'A' and 'D' is 162, what is the sum of all the numbers?Solution
ATQ,
Let the five consecutive even numbers be: A = x B = x + 2 C = x + 4 D = x + 6 E = x + 8
Given: A + D = 162 β x + (x + 6) = 162 β 2x + 6 = 162 β 2x = 156 β x = 78 Now find all the numbers: A = 78, B = 80, C = 82, D = 84, E = 86 Sum of all = 78 + 80 + 82 + 84 + 86 = 410
In a 400-metre race, βAβ beats βBβ by 20 seconds or 80 metres. Find the time taken by βBβ to finish the race.
'A' and 'B' are running on a circular track of length 3600 metres. 'A' is running clockwise at 4 m/s while 'B' is running anti-clockwise at 6 m/s. Find ...
A cheetah can catch a deer running with a speed of 144 km/h and is 50 meters ahead of it, in 10 seconds. Find the time taken by the cheetah to catch a z...
A dog is 1,500 metres ahead of a man when the man starts chasing by running at 18 m/s. If the dog is running at 10 m/s, then find the time taken by the...
If a man covers a distance in 1 hour, walking at a speed of 5 km/hr, how long will it take him to cover 15 km?
- Two runners, βMβ and βNβ, started from opposite ends of a track towards each other at the same time. When they met after 3 hours, runner βNβ ha...
A car can travel 320 kilometers in 8 hours. If a bike travels at a speed that is (3/16)th that of the car, how far will the bike go in 2 hours?
Riya rides a bike at an average speed of 50 kmph and reaches her destination in 6 hours. Himani covers the same distance in 5 hrs. If Riya increases her...
Two trains, A and B, start from two stations 240 km apart at the same time. Train A travels at 60 km/h and Train B travels at 40 km/h. After how much ti...
Ajay and Vishal left the place βXβ with different speeds which are in the ratio 3:2 respectively. Ajay left the place 42 seconds after Vishal. If af...