IBPS RRB clerk 19 sep 2020 Questions and Answers Detailed Explanation
MOST IMPORTANT previous year question answers - 1 EXERCISES
Directions:
What should come in place of the question mark (?) in the following questions?
The following question based on IBPS RRB Clerk topic of previous year question answers
(a) 256
(b) 512
(c) 2048
(d) 4096
e) 1024
The correct answers to the above question in:
Answer: (c)
$√{?+8} = 1/2 of 16^2$
$√{?+8} = 128$
Squaring on both sides, we get
? × 8 = 1282
⇒ ? = 2048
Hence, the answer is C.
Discuss Form
Read more ibps rrb clerk prelims 19 sep 2020 Based Previous Year Questions and Answers
Question : 1
192 × 4 = ?2 – $√{256}$
a) 28
b) 26
c) 24
d) 30
e) 32
Answer »Answer: (a)
192 × 4 = ?2 – $√{256}$
⇒ 768 = ?2 – 16
?2 = 768 + 16
= 784 = 282
⇒ ? = 28
Hence, the answer is A.
Question : 2
18$1/2$ - 2$1/4$ + 33 = ?
a) 45.25
b) 44.75
c) 44.25
d) 43.25
e) 42.25
Answer »Answer: (d)
? = 18$1/2$ - 2$1/4$ + 33
= $37/2$ - $9/4$ + 27
= $\text"74-9+108"/4$ = $173/4$
=43.25
Hence, the answer is D.
Directions:
What should come in place of the question mark (?) in the following questions?
Question : 3
4$2/3$ x $2/7$ + ? = 9
a) 5$1/21$
b) 6$1/3$
c) 7$2/3$
d) 5$2/7$
e) 2$1/7$
Answer »Answer: (c)
4$2/3$ x $2/7$ + ? = 9
⇒ $14/3$ × $2/7$ + ? = 9
⇒ ? = 9 - $4/3$
⇒ ? = 7$2/3$
Question : 4
$√{400} + (5 + 2)^2$ = ?
a) 469
b) 49
c) 449
d) 59
e) 69
Answer »Answer: (e)
? = $√{400}+ (5 + 2)^2$
= 20 + 49 = 69
Hence the answer is E.
Question : 5
50% of 24% of ? = 6
a) 25
b) 35
c) 40
d) 50
e) None of these
Answer »Answer: (d)
50% of 24% of ? = 6
⇒ 0.5 × 0.24 × ? = 6
? = 50
Hence the answer is D.
Directions:
What should come in place of the question mark (?) in the following questions?
Question : 6
$√{484}+√{?}=√{2304}$
a) 256
b) 196
c) 676
d) 324
e) 529
Answer »Answer: (c)
$√{484}+√{?}=√{2304}$
⇒ 22 + $√{?}$ = 48
⇒ 22 + $√{?}$ = 48 – 22
⇒ $√{?}$ = 26
⇒ ? = 262= 676
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IBPS RRB clerk 19 sep 2020
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