Arithmeticeasy · Past Paper
In a proportion, the product of means is equal to:
AProduct of extremes
BSum of extremes
CDifference of extremes
DSquare of extremes
✓ Correct Answer: A — Product of extremes
The fundamental property of a proportion a:b::c:d is ad = bc (Product of extremes = Product of means).
Share this question
More from Arithmetic
- If the compound interest on a sum for 2 years at 12.5% p.a. is Rs 510, find the simple interest on the same sum at the same rate for the same period.
- If (x+y):(x-y) = 4:1, find (x^2+y^2):(x^2-y^2).
- Two numbers are in the ratio 2:3. If 20% of the smaller number added to 20 is equal to the sum of 10% of the larger number and 25, then the smaller number is:
- The difference between CI and SI on a certain sum at 10% for 2 years is Rs. 25. Find the sum.
- A sum of money invested at CI triples itself in 4 years. In how many years will it become 27 times?