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InstructionsInstructions: What will come in place of question mark (?) in the following questions?
Question 1: 3463 × 295 – 18611 = ? + 5883
a)Â 997091
b)Â 997071
c)Â 997090
d)Â 999070
e)Â None of these
Question 2:Â (23.1)2 + (48.6)2 – (39.8)2 = ? + 1147.69
a)Â (13.6)2
b)Â $\sqrt{12.8}$
c)Â 163.84
d)Â 12.8
e)Â None of these
Question 3: $\frac{28}{65}$ x $\frac{195}{308}$ ÷ $\frac{39}{44}$ + $\frac{5}{26}$ = ?
a)Â $\frac{1}{3}$
b)Â $0.75$
c)Â 1$\frac{1}{2}$
d)Â $\frac{1}{2}$
e)Â None of these
IBPS PO Quant Formulas & Shortcuts
Question 4:Â [(3$\sqrt{8}$+ $\sqrt{8}$ ) (8$\sqrt{8}$ + 7$\sqrt{8}$ )] – 98 = ?
a)Â 2$\sqrt{8}$
b)Â 8$\sqrt{8}$
c)Â $382$
d)Â $386$
e)Â None of these
Question 5:Â $\sqrt{11449}$x$\sqrt{6241}$ – (54)2 = $\sqrt{?}$ + (74)2
a)Â 3844
b)Â 3721
c)Â 3481
d)Â 3638
e)Â None of these
InstructionsInstructions: What approximate value should come in place of question mark (?) in the following questions? (Note: You are not expected to calculate the exact value.)
Question 6:Â 39.897% of 4331 + 58.779% of 5003 =?
a)Â 4300
b)Â 4500
c)Â 4700
d)Â 4900
e)Â 5100
Question 7: 43931.03 ÷ 2111.02 × 401.04 =?
a)Â 8800
b)Â 7600
c)Â 7400
d)Â 9000
e)Â 8300
Question 8:Â $\sqrt{6354}$ x 34.999 = ?
a)Â 3000
b)Â 2800
c)Â 2500
d)Â 3300
e)Â 2600
Question 9: $\sqrt[3]{4663}$ + 349 = ? ÷ 21.003
a)Â 7600
b)Â 7650
c)Â 7860
d)Â 7560
e)Â 7680
Question 10: 59.88 ÷ 12.21 × 6.35 =?
a)Â 10
b)Â 50
c)Â 30
d)Â 70
e)Â 90
InstructionsInstructions: What will come in place of the question mark (?) in the following questions?
Question 11: 4003×77 – 21015 = ?×116
a)Â 2477
b)Â 2478
c)Â 2467
d)Â 2476
e)Â None of these
Question 12: [(5$\sqrt{7}$ + $\sqrt{7}$ ) × (4$\sqrt{7}$ + 8$\sqrt{7}$ )] – (19)2 = ?
a)Â 143
b)Â 72$\sqrt{7}$
c)Â 134
d)Â 70$\sqrt{7}$
e)Â None of these
Question 13: (4444÷40) + (645÷25) + (3991÷26) = ?
a)Â 280.4
b)Â 290.4
c)Â 295.4
d)Â 285.4
e)Â None of these
Question 14: $\sqrt{33124}$×$\sqrt{2601}$ – (83)2 = (?)2 + (37)2
a)Â 37
b)Â 33
c)Â 34
d)Â 28
e)Â None of these
Question 15: 5$\frac{17}{37}$ × 4$\frac{51}{52}$ × 11$\frac{1}{7}$ + 2$\frac{3}{4}$ = ?
a)Â 303.75
b)Â 305.75
c)Â 303$\frac{3}{4}$
d)Â 305$\frac{1}{4}$
e)Â None of these
InstructionsInstructions: What approximate value should come in place of the question mark (?) in the following questions. (Note: You are not expected to calculate the exact value)
Question 16: 8787 ÷ 343 × $\sqrt{50}$ = ?
a)Â 250
b)Â 140
c)Â 180
d)Â 100
e)Â 280
Question 17: $\sqrt[3]{54821}$×(303÷8) = (?)2
a)Â 48
b)Â 38
c)Â 28
d)Â 18
e)Â 58
Question 18:Â $\frac{5}{8}$ of 4011.33 + $\frac{7}{10}$ of 3411.22 = ?
a)Â 4810
b)Â 4980
c)Â 4890
d)Â 4930
e)Â 4850
Question 19:Â 23% of 6783 + 57% of 8431 = ?
a)Â 6460
b)Â 6420
c)Â 6320
d)Â 6630
e)Â 6365.7
Question 20: 335.01×244.99 ÷ 55 = ?
a)Â 1490
b)Â 1550
c)Â 1420
d)Â 1590
e)Â 1400
IBPS PO Previous Papers (Download Pdf)
Answers & Solutions:
1) Answer (A)
3463 × 295 = 1021585
1021585 – 18611 = 1002974
1002974 – 5883 = 997091
2) Answer (C)
(23.1)2 = 533.61
(48.6 )2 = 2361.96
(39.8)2 = 1584.04
533.61 + 2361.96 – 1584.04 = 1311.53
1311.53 – 1147.69 = 163.84
3) Answer (D)
We solve the problem as per BODMAS rule
$\frac{195}{308}$ ÷ $\frac{39}{44}$ = $\frac{5}{7}$
$\frac{28}{65}$ x $\frac{5}{7}$ = $\frac{4}{13}$
$\frac{4}{13}$ + $\frac{5}{26}$ = $\frac{13}{26}$ = $\frac{1}{2}$
4) Answer (C)
[ $\sqrt{8}$ (3 +1) x $\sqrt{8}$(8 + 7)] – 98
= [4$\sqrt{8}$ x 15 x $\sqrt{8}$ ] – 98
= [60 x $\sqrt{8}$] – 98
= 480 – 98 = 382
5) Answer (B)
$\sqrt{11449}$ x $\sqrt{6241}$ – (54)2 – (74)2 = $\sqrt{?}$
$\sqrt{?}$ = [107 x 79] – 2916 – 5476
= 8453 – 2916 – 5476 = 61
$\sqrt{?}$= (61)2 = 3721
6) Answer (C)
40 x $\frac{4330}{100}$ + 59 + $\frac{5000}{100}$
= 1732 + 2950
= 4682
7) Answer (E)
$\frac{43931}{2111}$ x 401 = 8345.01 ≈ 8300
8) Answer (B)
After taking approximation equation will be
$\sqrt{6354}$ x 34.993 = 80 x 35 = 2800
9) Answer (E)
$\sqrt[3]{4663}$ ≈ 17
17 + 349 = ? ÷ 21
366 x 21 = ?
? = 7686 ≈ 7680
10) Answer (C)
After taking approximation equation will be 60 ÷ 12 x 6 = 30
11) Answer (D)
4003 x 77 = 308231
308231 – 21015 = 287216
$\frac{287216}{116}$ = 2476
12) Answer (A)
[(5$\sqrt{7}$ + $\sqrt{7}$ ) × (4$\sqrt{7}$ + 8$\sqrt{7}$ )] – (19)2
= [6$\sqrt{7}$ x 12$\sqrt{7}$] – 192
= [72 x 7] – 192
= 143
13) Answer (B)
$\frac{4444}{40}$ = 111.1
$\frac{645}{25}$ = 25.8
$\frac{3991}{26}$ = 153.5
Total = 111.1 + 25.8 + 153.5 = 290.4
14) Answer (E)
$\sqrt{33124}$×$\sqrt{2601}$ – (83)2
= 2393
2393 – 372
= 1024
$\sqrt{1024}$ = 32
15) Answer (B)
5$\frac{17}{37}$ = $\frac{202}{37}$
4$\frac{51}{52}$ = $\frac{259}{52}$
11$\frac{1}{7}$ = $\frac{78}{7}$
2$\frac{3}{4}$ = $\frac{11}{4}$
$\frac{202}{37}$ x $\frac{259}{52}$ x $\frac{78}{7}$ = 303
303 + $\frac{11}{4}$ = 305.75
16) Answer (C)
8787 ÷ 343 = 25.61
$\sqrt{50}$ = 7.07
25.61 x 7.07 = 181.06 ≈ 180
17) Answer (B)
303 ÷ 8 =37.875 ≈ 38
$\sqrt[3]{54821}$ = 37.98 ≈ 38
382
18) Answer (C)
$\frac{5}{8}$ x 4011.33 = 2507.08
$\frac{7}{10}$ of 3411.22 = 2387.854
2507.08 + 2387.854 = 4894.934 ≈ 4890
19) Answer (E)
23% of 6783 can be calculated as (20+3)% of 6783 = 1560.09
57% of 8453 can be calculated as (50+7)% of 8431 = 4805.67
Sum will be = 1560.09 + 4805.67 = 6365.7
20) Answer (A)
244.99 ≈ 245
245 ÷ 55 = 4.45
335.01 ≈ 335
335 x 4.45 = 1492 ≈ 1490