Simplification for IBPS PO test 2-Solved questions with detailed explanations for SSC, IBPS PO, SBI PO, RRB, RBI, CSE, CGL, CHSL, CDA, CSE, UPSC

16)

What will come in place of question mark (?) in the following questions?

$25 \times 3.25 + 50.4 \div 24 =?$

[BOI (PO), 2010]

A)
84.5
B)
83.34999999999999
C)
83.53
D)
82.45
E)
None of these

Answer: Option B

Explanation

In this question

We follow the BODMAS rule and then apply rule of decimals

$\begin{array}{l} So, 25 \times 3.25 + 50.4 \div 24 \\ \Rightarrow ? = 25 \times 3.25 + 2.1 \\ \Rightarrow ? = 81 .25 + 2.10 \\ \Rightarrow ? = 81 .25 + 2.10 \\ ? = 83.35 \end{array}$

Hence, Option B is correct.

Discussion

17)

$34 .596 + 61.4 72 - 496.708 = ?+ 27.271$

[CBI (PO), 2010]

A)
126.631
B)
62.069
C)
72.089
D)
132.788
E)
None of these

Answer: Option E

Explanation

In this question

We follow BODMAS rule and then apply Rule of Decimals,

$\begin{array}{l} So, 34.596 + 61.4 72 - 496.708 \\ = ?+ 27.271 \\ \Rightarrow 96.068 - 496.708= ?+ 27.271 \\ \Rightarrow 27.271+ 496.708- 96.068 \\ \Rightarrow ?= 523.979 - 96.068= 427.911 \end{array}$

Hence, Option E is correct.

Discussion

18)

$15.4 \times 13.5 \times ?= 2598.75$

[BOI (PO), 2010]

A)
13.4
B)
10.5
C)
11.4
D)
12.5
E)
None of these

Answer: Option D

Explanation

In this question

we solve by applying rule of decimals,

$\begin{array}{l} So, ? = \frac{2598.75}{15 .4 \times 13 .5} \\ = \frac{2598.75}{207 .9} = 12 .5 \end{array}$

Hence, Option D is correct.

Discussion

19)

6435.9+7546.4+1203.5=?

[BOI (PO), 2010]

A)
15188.5
B)
15185.8
C)
15155.5
D)
15815.8
E)
None of these

Answer: Option B

Explanation

In this question

we apply rule of decimals,

$\begin{array}{l} 6435.9 \\ 7546.4 \\ \frac{+1203.5}{15185.8} \end{array}$

Hence, Option B is correct.

Discussion

20)

$4.5 \times 437 + 19 = ?$

[BOI (PO), 2010]

A)
103.5
B)
115.3
C)
105.3
D)
113.5
E)
None of these

Answer: Option A

Explanation

In this question

We follow BODMAS rule and then apply rule of decimals,

$\begin{array}{l} So, 4.5 \times 437 \div 19 \\ = 4.5 \times 23= 103.5 \end{array}$

Hence, Option A is correct.

Discussion

Simplification-Test 2 (Based on VBODMAS/Decimals)

Answer: Option B

Answer: Option E

Answer: Option D

Answer: Option B

Answer: Option A