Question
Magnesium has atomic number as 12. Find out its
valiancy.Solution
The valency of magnesium with atomic number 12 is 2. The electronic configuration of magnesium is 2, 8, 2. As the valance shell contains two electrons, its valency is 2.
Archana's income is 40% higher than Bhasker's, and Cherry's income is 60% more than Bhasker's. Both Archana and Cherry save Rs. 8,000 each, with the exp...
The ratio of "Bhuvan's" income to "Chetan's" expenses is 3:1. The amount that "Anoop" spends is the same as "Chetan's," which is 20% less than "Bhuvan's...
- ‘P’ earns Rs. 48000 which is 25% less than what ‘Q’ earns. ‘Q’ spends 50% of his income and saves the rest. If the ratio of savings of ‘P’ ...
In which of the following years, the difference in no. of students appearing for UIT from the previous year is highest?
- In 2023, Meena spends 65% of her salary. In 2024, her salary increased by 35%, and she raised her expenditure by 25%. What is the percentage increment in h...
Person X's earnings exceed Person Y's by 25%, and both individuals manage to save Rs. 2400 each. The ratio of Person Y's expenses to Person X's expenses...
'B' distributes 65% of his total earnings among his father, mother, and sister in the ratio of 5:4:3. If his sister's share is Rs. 1,950, what is B's to...
Rohit allocates his monthly salary in different proportions: 15% on traveling, 20% on entertainment, 22% on studies, and 26% on food. The remainder is d...
Income of Ankit is Rs. 36,000. He spends 18% on rent, 22% on clothing, 'a%' on food, 28% on others and saves the rest. If his savings is Rs. 5,400, find...
A person spends 75% of his income. If his income increases by 20% and his expenditure increases by 10%, then his new saving becomes Rs. 9000. What was h...
Relevant for Exams:
