A) 1 : 1
B) 2 : 3
C) 3 : 5
D) 4 : 5
Correct Answer: C
Solution :
The ratio of R&T in me new fertilizer \[=\frac{\frac{2}{7}\times 21+3}{\frac{5}{7}\times 21}\] \[=\frac{6+3}{15}\] \[=\frac{9}{15}\] \[=\frac{3}{5}\] \[=3:5\]You need to login to perform this action.
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