Arithmetichard · Past Paper
Two numbers are in the ratio 3:5. If 9 is subtracted from each, the new numbers are in the ratio 12:23. The smaller number is:
A33
B27
C49
D55
✓ Correct Answer: A — 33
(3x-9)/(5x-9) = 12/23 => 69x - 207 = 60x - 108 => 9x = 99 => x = 11. Smaller number = 3 * 11 = 33.
Share this question
More from Arithmetic
- Find the compound interest on Rs. 8000 for 1 year at 10% p.a. compounded semi-annually.
- If $x:5 = 12:20$, what is the value of $x$?
- Find the compound interest on Rs 10000 for 1 year at 20% p.a. compounded quarterly.
- Successive discounts of 10% and 10% are equivalent to a single discount of:
- If 10% of x is the same as 20% of y, then x:y is: