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Test # 114


1.
3 men or 6 women can do a piece of work in 20 days. In how many days will 12 men and 8 women do the same work?

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Idiom of the Day

hitch a ride
to ask for a ride from a passing motorist by putting your thumb in the air, to get a ride from a passing motorist
We had no gas so I had to hitch a ride to a gas station.
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  • Simple Science

    The Gas Meter

    General Properties of Gases:
    Most householders are deeply interested in the actual amount of gas which they consume (gas is charged for according to the number of cubic feet used), and therefore they should be able to read the gas meter which indicates their consumption of gas. Such gas meters are furnished by the companies, and can be read easily.

    The instrument itself is somewhat complex. It will suffice to say that within the meter box are thin disks which are moved by the stream of gas that passes them. This movement of the disks is recorded by clockwork devices on a dial face. In this way, the number of cubic feet of gas which pass through the meter is automatically registered.

    FIG. - The gas meter indicates the number of cubic feet of gas consumed.


    Chourishi Systems