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Calcium chloride (CaCl₂ ) in water contributes to its permanent hardness. This type of hardness cannot be removed by boiling, unlike temporary hardness, and typically requires a water softener or ion exchange process to be treated.
The price of sugar is increased by 35%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original c...
The sum of three numbers is 188. If the ratio of the first to the second is 2:5 and that of second to the third is 7:9 then the second number is?
The ratio of the monthly incomes of Dinesh, Nikhil and Rohan is 64:73:81. If Dinesh’s monthly income is 10,496, then find Rohan’s annual inc...
If A:B:C = 2:3:8 and (B + C) = 132, then find the difference between 'C' and 'A'.
300 is divided into two parts such that thrice of the first part and twice of the second part are in ratio 21:16, respectively. Find the difference betw...
Monthly savings of ‘Q’ is 25% more than that of ‘P’ and is 44% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 5150 a...
The ratio of the pocket money of two persons ‘R’ and ‘S’ is 6:5, respectively. ‘R’ spends 60% of his pocket money while ‘S’ spends 70% o...
The ratio of A to B is 3: 4 and that of B to C is 1: 2. If B equals 720, A equals
A plot has to be divided among P, Q and R in the ratio 3:5:7 respectively. If the area of plot received by R is 3800m² more than the area of plot recei...
The ratio of two numbers is 3 : 8. If the sum of both the numbers is 220, then what is the smaller number among both the numbers?