Arithmeticmedium · Past Paper
If x/y = 3/4, then find the value of (7x-4y)/(3x+y).
A5/13
B1/13
C5/12
D1/12
✓ Correct Answer: A — 5/13
Substitute x=3, y=4: (7*3 - 4*4)/(3*3 + 4) = (21-16)/(9+4) = 5/13.
Share this question
More from Arithmetic
- If CP of 5 mangoes is equal to SP of 4 mangoes, then find the profit %.
- 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:
- If loss is 1/3 of SP, find loss % on CP.
- Two numbers are in the ratio 2:3. If their product is 96, find the sum of the numbers.
- What will be the compound interest on Rs 5000 for 1 year at 8% per annum compounded semi-annually?