If m:n = 3:2, the (4m+5n):(4m-5n) is equal to _____?
- 4:9
- 11:1
- 9:4
- 9:1
Explanation
To solve this, we can start by expressing the given ratio m:n = 3:2 in terms of a variable, let's say x. So, m = 3x and n = 2x.
Now, let's substitute these expressions into the given ratio (4m+5n):(4m-5n):
(4(3x) + 5(2x)) : (4(3x) - 5(2x))
Expanding and simplifying, we get:
(12x + 10x) : (12x - 10x)
22x : 2x
Now, we can divide both terms by 2x to get: 11 : 1
Related MCQs
- 80 km/h
- 72 km/h
- 100 km/h
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 180 km
- 160 km
- 140 km
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 45 km/h
- 48 km/h
- 50 km/h
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 120 km
- 100 km
- 140 km
- 80 km
اس سوال کو وضاحت کے ساتھ پڑھیں
- 30 km/h
- 40 km/h
- 50 km/h
- 60 km/h
اس سوال کو وضاحت کے ساتھ پڑھیں
