Question
Which one of the following is the petroleum
wax?ÂSolution
Paraffin wax is obtained from petroleum by dewaxing light lubricating oil stocks. It is used in candles, wax paper, polishes, cosmetics, and electrical insulators. It assists in extracting perfumes from flowers, forms a base for medical ointments, and supplies a waterproof coating for wood. In wood and paper matches, it helps to ignite the matchstick by supplying an easily vaporized hydrocarbon fuel.Â
The ratio of the present ages of ‘A’ and ‘B’ is 4:5, respectively. After 8 years, the ratio of their ages will become 5:6. The sum of the presen...
The ratio of two numbers P and Q is 6: 11 respectively. When 5 is added to P and 84 is subtracted from Q, then the ratio of P and Q becomes 5: 2 respect...
The ages of X and Y are in the proportion of 6: 5 and the total of their ages is 66. The proportion of their ages after 4 years will be:
Rs 1215 is divided among 6 men, 5 women and 3 boys so that the share of a man, a woman and a boy may be in the ratio of 5:6:7. What is the share ...
The price of sugar is increased by 15%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original c...
If 'T' is the prime number 11, then find the fourth proportion of (T + 1), (T - 5) and (T + 3).
The ratio of two numbers is 2:5. If each number is decreased by 4, the ratio becomes 3:8. Find the smaller numbers.
- The mean proportional of 10 and 40 is _____.
A quantity x is directly proportional to another quantity y. When x = 56, then y = 28. When y = 45, then find the value of x.
90 percent of first number is equal to 40 percent of the second number. What is the respective ratio of the first number to the second number?
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