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
124, 180, 108, 198, ?, 220
Find the missing term in the series:
3, 8, 19, 42, 89, ?
- What will come in place of the question mark (?) in the following series?
?, 162, 54, 18, 9, 3 168, 164, 155, 139, ?, 78
168, 178, ?, 273, 400, 618, 963
4    11     22     ?      56    79    106
...107    157    194    ?     237    247
...Find the missing term in the series:
4, 7, 13, 25, 49, ?
What value should come in the place of (?) in the following number series?
100, 149, 68, 189, ?, 245
Find the missing number (?) in the given number series.
1, 4, 10, 22, 46, ?
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