Question

a =1/3, b = 1/4 ആയാൽ (a+b)/ab എത്ര?

• A. 8
• B. 7
• C. 6
• D. 1

Answer 1

Answer:

B. 7

$\frac{(a+b)}{ab}=\frac{\frac13+\frac14}{\frac13\times\frac14}$

$=\frac{\frac7{12}}{\frac1{12}}=\frac7{12}\times12$

$=7$