Lithium is the first element in the alkali metal group. It is the lightest solid metal, soft, silvery-white, has a low melting point and is reactive, though not as reactive or as soft as the other alkali metals.It has a high specific heat (calorific capacity), the huge temperature interval in the liquid state, low viscosity and very low density.
There were two candidate in an election. 15% of the total voters did not cast their votes whereas 10% of the casting votes were declared invalid. If the...
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A spent 30% and 20% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 21% and 14% to his mother and brother, respec...
In an election, two candidates participated. 20% voters did not cast their votes, out of which 600 votes declared invalid and the winner get 75% of the ...
Out of 800 students in school, 10% students like samosa only and 20% students like samosa and momos both. If 42% students don’t like any snacks then f...
A girl spent 16% of her monthly income on clothing. Of the remaining, she spent on travel and food in the ratio of 5:2. If the difference of the income ...
