Arithmeticeasy · Past Paper
What is the compound ratio of 2:3 and 4:5?
A8:15
B6:8
C2:5
D15:8
✓ Correct Answer: A — 8:15
The compound ratio of a:b and c:d is (a*c):(b*d). So, (2*4):(3*5) = 8:15.
Share this question
More from Arithmetic
- A sum of money is divided into two parts in the ratio 5:3. If the first part is Rs 20 more than the second part, find the total sum.
- If A's income is 10% more than B's and B's income is 20% less than C's, what is the ratio of A's income to C's income?
- If CP of 5 items is equal to SP of 4 items, then profit percent is:
- If a student's marks are increased by 20%, they become 72. What were the original marks?
- A sum of money is divided between P, Q, R in ratio 3:5:7. If Q's share is Rs 1500, what is the total sum?