Question
A storeroom has only steel and copper rods in the ratio
4:3, respectively and the weight of each steel and each copper rod is in the ratio 5:6, respectively. If the total weight of all the rods in the storeroom is 190 kg, then what is the weight of one steel rod?Solution
Let the number of steel and copper rods in the storeroom be ‘4k’ and ‘3k’, respectively Let the weight of one steel rod and one copper rod be ‘5y’ kg and ‘7y’ kg, respectively According to the question, 4k × 5y + 3k × 6y = 190 Or, 20ky + 18ky = 190 Or, 38ky = 190 Or, ky = (190/38) = 5 But since we do not have information regarding the exact number of rods in the room, we cannot determine the exact weight of one steel rod.
Mohit walked 30 metres towards South. Then he turned to his left and walked 25 metres. He then turned to his left and walked 30 metres. He again turned ...
Sonali drove her son to his school towards South, which is 5 km away from her house. From school, she turned westward towards the market, which is 8 km ...
In which direction and at what distance is point M with respect to point O?
what is the difference between the sum of distance of HI+IG and DK+ID?
G @ H % I # J @ K, then in which direction is K with respect to H?
Rachna went 12 Km to the West from my house, then turned left and walked 16 Km. She then turned East and walked 22 Km & finally turning left covered 1...
In which direction point J with respect to point O?
Pooja walks 16 km towards North. From there she walks 10 km towards South. Then, she walks 8 km towards East. How far is she from her starting point? Â ...
Varun is facing north. He cycles for 6 km, then turns towards the south-east direction to move 10 km and from there, he moves 8 km towards the west. In ...
Read the direction carefully and answer the following question.
Deepa moved a distance of 75 meters towards the North. She then turned to the l...