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First tap fills `1/18` of the cistern in 1 minute Second tap `1/24` fills of the cistern in 1 minute. First tap is turned off and the tank is filled in 12 mts. `1/24xx12 = 1/2` of the tank is filled by the second tap in 12 minutes. `1/2` of the tank is filled by the 1st tap in=`18/1xx1/2 = 9mts.` Alternate Method: I II Time 18 24 LCM 72 units Eff 4 : 3 As 1st pipes is closed so 2nd pipes is for whole time , Hence 2nd pipe will finish = 3`xx` 12=36 units So remaining = 72 - 36 = 36 units which is done by Ist, Hence 1st tap worked for = 36/4 = 9 minutes
A sum of Rs. 642 is divided among X, Y and Z such that X gets Rs. 144 more than Y. Y gets Rs. 90 more than Z. Find the share of Z?
Three numbers are in ratio 5:6:7. If the sum of the squares of those three numbers is 440 then find the sum of the three numbers.
The sum of three numbers is 189. If the ratio of the first to the second is 3:4 and that of second to the third is 5:7 then the second number is?
If A:B:C = 3:4:7 and (C - A + B) = 48, then find the value of (2C + A2).
In a class of 250 students, 150 are girls and remaining are boys. Among boys, the ratio of number of boys who are wearing caps to those who are not wear...
Abdul allocates 90% of his income among his wife, son, and daughter in the ratio of 5:2:1, while saving the remaining amount, which totals Rs. 4,000. Fr...
Marks scored by A and B in a test are in the ratio 13:6 respectively. If B had scored 4 more marks, then marks scored by A would be 30% more than that o...
In an orchard, the ratio of the number of mango and lichi trees is 3:5, respectively. Also, there are few apple trees in the orchard which is 50% more t...
The earnings of two individuals, P and Q, are in the ratio of 4:7. After an increase of 30% in Q’s earnings, his total earnings amount to Rs. 27,300. ...
Rs 1927 was divided among Anil, Bhanu and Charan in the ratio of 14:9:18 respectively. Find the amount received by Anil and Bhanu together.
