Simplification-Test 1 (Based on VBODMAS rule)

Answer: Option E

Explanation

In this question 

$\begin{array}{l}\text{Here, }\\ \Rightarrow \text{36}\times \text{15}-\text{56}\times \text{784 +112}\\ \Rightarrow \text{\hspace{0.17em}36}\times \text{15}-\text{56}\times \text{7}\\ \Rightarrow \text{\hspace{0.17em}540}-\text{392=148}\end{array}$

Hence, Option E is correct.

Answer: Option C

Explanation

In this question,

$$\begin{gathered} \begin{array}{l}\Rightarrow \text{23}\times \text{15}-\text{60 + ?}÷\text{31 = 292}\\ \Rightarrow \text{\hspace{0.17em}345}-\text{60 + ?}÷\text{31 = 292}\\ \Rightarrow \text{285 + ?}÷\text{31 = 292}\\ \Rightarrow \text{\hspace{0.17em}?}÷\text{31 = 7}\\ \Rightarrow \text{\hspace{0.17em}? = 7}\times \text{31}\end{array} \\ \Rightarrow \text{217} \end{gathered}$$

Hence, Option C is correct.

Answer: Option E

Explanation

In this question 

$\begin{array}{l}\Rightarrow \text{192}-\text{672+21=?}-\text{211}\\ \Rightarrow \text{\hspace{0.17em}\hspace{0.17em}192}-\text{32 =?}-\text{211}\\ \Rightarrow \text{\hspace{0.17em}\hspace{0.17em}160 =?}-\text{211}\\ \Rightarrow \text{ ? = 160 + 211}\\ \Rightarrow \text{ ? = 371}\end{array}$

Hence, Option E is correct.

Answer: Option D

Explanation

In this question,

$\begin{array}{ll}\text{= 1268}÷\text{8}÷\text{2 =?}& \end{array}$

It can aslo be written as,

 $= 1268\times \frac{1}{8}\times \frac{1}{2}=79.25$

Hence, Option D is corrcet.

Answer: Option D

Explanation

From the above question

It can be written as,

$\begin{array}{l}=\text{\hspace{0.17em}\hspace{0.17em}88}\times \frac{1}{5}\times \frac{1}{4}\\ =\text{88}\times \frac{1}{20}=4.4\end{array}$

Hence, Option D is correct.