Hi Aishwarya, Direct and inverse variation are not the same as cross multiplying. They are concepts used in problem solving. Direct variation is when the independent variable increases proportionally

Hi Aishwarya, Historically, 1 out of 100 was a convenient ratio for a rate of taxation. It became a standard concept over time. Mathematically, a percentage is just a fraction with a denominator

Good question! Here are some places to read about it... https://www.quora.com/How-did-Shakuntala-Devi-perform-such-huge-calculations-with-great-speed-and-precision https://www.quora.com/How-did-Shakuntala-Devi-mentally-calculate-the-23rd-root-of-a-201-digit-number-correctly

Hello Julian, Without additional info there are literally infinitely many possibilities! The relationship could be (1) linear, (2) quadratic, (3) cubic, (4) exponential, (5) logarithmic, (6) power

The 39,000 man-hrs is the amount of work done or to be done. So, it could mean 39,000 men work for 1 hour, or 3900 men work for 10 hrs, or 390 men work for 100 hrs, or 39 men work for 1000 hrs, or as

- Animals/Pets
- Arts/Humanities
- Autos
- Business
- Cities/Towns
- Comedy
- Computing/Technology
- Cultures
- Education
- Food/Drink
- Gadgets
- Games
- Health/Fitness
- Hobbies
- Home/Garden
- Homework Help
- Industry
- Internet/Online
- Jobs/Careers
- Kids
- Money
- Movies
- Music/Performing Arts
- News/Issues
- Parenting/Family
- People/Relationships
- Real Estate
- Recreation/Outdoors
- Religion/Spirituality
- Science
- Shopping
- Sports
- Style
- Teens
- Travel
- TV/Radio