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

11)

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

$[(15.5 \times 28) \div 16 - 1230 \div 240]= ? \times 5$

[RBI, 2015]

A)
4.4
B)
4
C)
5
D)
4.2
E)
2.4

Answer: Option A

Explanation

In this question

Here,

$\begin{array}{l} [(15 .5 \times 28) \div 16 - 1230 \div 240] = ? \times 5 \end{array} \begin{array}{l} \Rightarrow 434 \div 16 - 5.125 = ? \times 5 \end{array} \begin{array}{l} \Rightarrow 27.125 - 5.125= ? \times 5 \end{array} \begin{array}{l} \Rightarrow 22 = ? \times 5 \end{array} \begin{array}{l} \Rightarrow ? = \frac{22}{5} \end{array} = 4.4$

Hence, Option A is correct.

Discussion

12)

$37.5 \div [\frac{1}{2} of (24 + 33) - 13 \frac{1}{2}] = ?$

[RBI, 2015]

A)
2.75
B)
2.5
C)
1.75
D)
2.25
E)
1.5

Answer: Option B

Explanation

In this question

$\begin{array}{l} 37.5 \div [\frac{1}{2} of (24 + 33) - 13 \frac{1}{2}] = ? \\ \Rightarrow 37.5 \div [\frac{1}{2} \times 57 - \frac{27}{2}] \\ \Rightarrow 37.5 \div [\frac{57 - 27}{2}] \\ \Rightarrow 37 .5 \div 15 \\ \Rightarrow ? = 2 .5 \end{array}$

Hence, Option B is correct.

Discussion

13)

$1111 .100$

[UBI (PO), 2011]

A)
1232.231
B)
1233.123
C)
1332.331
D)
1323.132
E)
None of these

Answer: Option E

Explanation

According to his questiob

$\begin{array}{l} So, 1111.100 \\ 111.110 \\ \frac{+ 11.111}{1233.321} \end{array}$

HEnce Option E s correct

Discussion

14)

$12.4 \times ? \times 16.5 = 2905.32$

[UBI (PO), 2011]

A)
13.4
B)
15.2
C)
16.2
D)
14.2
E)
None of these

Answer: Option D

Explanation

In this question

we multiply by following decimal rules

$\begin{array}{l} So, 12.4 \times ? \times 16.5 = 2905.32 \\ ? = \frac{2905.32}{204.6} = 14.2 \end{array}$

Hence, Option D is correct.

Discussion

15)

28.314 - 31.427 + 113.928= ? + 29.114

[BOI (PO), 2010]

A)
81.711
B)
80.70099999999999
C)
71.711
D)
81.70099999999999
E)
None of these

Discussion

Simplification-Test 2 (Based on VBODMAS/Decimals)

Answer: Option A

Answer: Option B

Answer: Option E

Answer: Option D

Answer: Option D