Question
‘A’ alone can complete a work in 15 days. ‘B’
alone can complete the same work in 18 days. If ‘A’ and ‘B’ work together for 6 days, then the remaining work can be completed by ‘A’ alone in how many days?Solution
Let the total amount of work = 90 units {LCM of 15 and 18} Then, efficiency of ‘A’ = 90/15 = 6 units/day Efficiency of ‘B’ = 90/18 = 5 units/day Combined efficiency of ‘A’ and ‘B’ = 6 + 5 = 11 units/day Work completed by ‘A’ and ‘B’ together in 6 days = 6 × 11 = 66 units Remaining work = 90 – 66 = 24 units Time taken by ‘A’ alone to complete the remaining work = 24/6 = 4 days
Sonam is walking facing south, then turns 90° in clockwise direction and then turns 90° in clockwise direction again. In which direction is she finall...
A % B, X * A, B % Y, Z * X then find the minimum distance between X and B (approx)?
If U walks 18m towards the west and then takes a left turn of 24m then, what is the shortest distance between Q and U finally?
Uma went 18 Km to the West from my house, then turned left and walked 22 Km. She then turned East and walked 32 Km & finally turning left covered 22 Km...
Rakesh walks 4 km to west and turns to his right and walks 6 km and turns right and walks 6 km and finally turns to his right. Which direction is he fac...
Rohit travels 25m towards the east and then turns 90° to his right and travels another 4 m. Finally, he turns right and covers 25m. How far is he now f...
Sanjay walks 20 km in the north direction, then turns in the east direction and walks 4 km.Then in which direction he is now with respect to the start...
What is the shortest distance between point H and G?
A, is in which direction with respect to point D?
Point D is 3m to the West of Point R. Point A is 6 m to the North of point D. Point K is 16 m to West of point A. Point K forms a midpoint of the vertic...
