The weights of 4 boxes are 20, 40, 50 and 30 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?
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The pie chart shows the breakup of expenditure of a mining company for the year 2017. Study the diagram and answer the following question.
Expenditure on Labour and Research constitute what percent of total expenditure?
In the following list of devices, which device is used in datalink layer?
ATM is the abbreviated form of
Who invented the hot air balloon?
To whom the Nobel Prize in Physiology or Medicine 2016 was awarded?
Who discovered X-Ray?
In a Parliamentary form of Government ___________