Arithmeticmedium · Past Paper
If a:b = c:d, which of the following is true by Componendo and Dividendo?
A(a+b)/(a-b) = (c+d)/(c-d)
Ba/c = b/d
C(a-b)/b = (c-d)/d
Dab = cd
✓ Correct Answer: A — (a+b)/(a-b) = (c+d)/(c-d)
Componendo and Dividendo states that if a/b = c/d, then (a+b)/(a-b) = (c+d)/(c-d).
Share this question
More from Arithmetic
- How much is 80% of 80?
- The ratio of the number of sides of a pentagon to an octagon is:
- A shopkeeper buys an article for Rs. 80 and sells it for Rs. 100. Find the profit percentage.
- If A = 20% of B and B = 25% of C, then what percent of C is A?
- In a class of 40 students, 15 are girls. What is the ratio of boys to girls?