Question
A storeroom has only steel and copper rods in the ratio
7:6, respectively and the weight of each steel and each copper rod is in the ratio 7:8, respectively. If the total weight of all the rods in the storeroom is 291 kg, then what is the weight of one steel rod?Solution
Let the number of steel and copper rods in the storeroom be ‘7k’ and ‘6k’, respectively Let the weight of one steel rod and one copper rod be ‘7y’ kg and ‘8y’ kg, respectively According to the question, 7k × 7y + 6k × 8y = 291 Or, 49ky + 48ky = 291 Or, 97ky = 291 Or, ky = (291/97) = 3 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.
Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is relate...
Who sits adjacent to S?
Select the option that is related to the third word in the same way as the second word is related to the first word.
PRINT: OMMQK:: MUSIC: ?
Select the option in which the numbers are related in the same way as are the number of the following set.
(4, 12, 132)
Select the correct combination of letters that when sequentially placed in the blanks of the given series will complete the series.
J _ Q _ L P J...
Six people – Geeta, Rajat, Rekha, Riya, Gopal and Diwakar are living in six floor building each lives on one of the floors of the building. There are...
Which word will best complete the relationship given below?
Hygrometer : Humidity :: Barometer : ?
Select the option that is related to the third term in the same way as the second term is related to the first term.
CNOP: EKSK :: UWQZ: ?
Select the option that is related to the third term in the same way as the second term is related to first term and the sixth term is related to the fif...
Select the option that is related to third number-cluster in the same way first number cluster is related to second number-cluster.
34: 25 :: 4...
Relevant for Exams:
