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Henry Cavendish:- • He was a brilliant scientist who made significant contributions to chemistry and physics. • He discovered hydrogen in 1766 and measured the gravitational constant in 1798. • His work on the gravitational constant was particularly important, as it provided the first accurate measurement of the force of gravity between masses in the laboratory. • He reported the measurement of the gravitational constant with the mass and density of the Earth in June 1798. His results were published in a 57-page paper in the Transactions of the Royal Society entitled "Experiments to Determine the Density of the Earth."
Monthly income of P is Rs.19000 and his monthly savings is Rs.9500. If his monthly income is decreased by 30% and monthly expenditure is decreased by 20...
A gave 60% of the amount he had to B. B gave 3/5th of what he received from A to C. After paying Rs. 220 to the taxi driver out of the amount he gets fr...
If the price of sugar increases by 40%, by what percentage should a family reduce its sugar consumption so that the family's expenses do not increase?...
Income of A is 60% of the Income of B and A together. The saving of B is 30% of his Income and equals to Rs. 9600. Find the difference between the incom...
A boy lost his 25% of his money. After spending 30% of the remainder, he has Rs 1260 left. What money does he had initially?
A and B have incomes in the ratio of 5:6. A spends 30% of his income and manages to save Rs. 17,500. Based on this information, calculate the income of B.
The number of boys and girls in a school is 160 and 220 respectively. 25% of boys left the school while 40 girls took admission in the school. Find the ...
M and N are two numbers. Their average is 160, and the sum of M and N is 120% of M. What percentage of M is the difference between M and N?
Rihan spends 40% of his salary, which is Rs. 1200 more than the amount he would spend if he spent 30% of his salary. What is the total salary of Rihan?
‘X’ owns 40% less pens than ‘Y’. ‘Y’ owns 50% more pens than ‘Z’. By what percentage are the pens with ‘X’ less than those with ‘Z...
