Question
The oldest type of energy known to man is
–Solution
The oldest energy known to man is Geothermal energy. This geothermal energy originates from the original formation of the planet, from radioactive decay of minerals, and from solar energy absorbed at the surface. It has been used for space heating and bathing since ancient Roman times, but is now better known for generating electricity. Geothermal energy is thermal energy generated and stored in the Earth.
One-fourth of a number is 70. What will 40% of that number?
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If the numerator of a fraction is increased by 10% and the denominator is reduced by 20%, the resulting fraction is 11/6. What was the original fraction?
If a number 'a' is divisible by 18 and another number 'b' is divisible by 12, then (a2 – b2) is divisible by:
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If 893x2 is divisible by 56, and x > 6, find x.
If a cube of a number is subtracted from (153)², the number so obtained is 1457, Find the number.
A number becomes 90 more than itself when 120% of it is added to it. What number is obtained after the addition?
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