Which of the following options is the smallest?

Correct option is A

Formula Used:

​$$\begin {array}{|c|c|} \hline \textbf{Operation preference wise} & \textbf{Symbol} \\ \hline Brackets &[],{}, () \\ \hline Orders, of & ² (power), √ (root) , of \\ \hline Division & ÷ \\ \hline Multiplication & × \\ \hline Addition & + \\ \hline Subtraction & - \\ \hline \end{array}$$​

Solution:

a)$$\frac{99}{6\ of\ 3} + \frac{58}{116} +132 \div 11$$​​

= $$\frac{11}{2} + \frac{1}{2} +12$$

​$$= \frac{11+1+24}{2} =\frac{36}{2} =18$$​​

b)$$(\frac{2}{5}+\frac{4}{3}) \times 30$$​​

$$=(\frac{6+20}{15}) \times 30 = 52$$​

​$$c) \ 32 + 8 + \frac{3}{5}\ of\ 85$$​​

​$$=32 + 8 +51 = 91$$​​

​$$d) \ \frac{21}{63}\ of\ 33 + (6.5 \times 4)$$​​

​$$=11 + 26= 37$$ 

Hence option (a) 18 is the smallest.

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