Question 50

loading...

Prev/Next links

waecmaths question: 

If $E=\frac{MN}{S+N}$ and E =75, M = 120, N = 5000, find S

Option A: 

1000

Option B: 

2000

Option C: 

3000

Option D: 

4000

waecmaths solution: 

$\begin{align}  & E=\frac{MN}{S+N} \\ & 75=\frac{120\times 5000}{S+5000} \\ & 75(S+5000)=60000 \\ & S+5000=8000 \\ & S=3000 \\\end{align}$

maths year: 
maths topics: