Cooperative Bank Exam 2017 Maths Practice set- Banking, SSC

Maths Quant Practice set for Cooperative Bank, KCC Bank, SSC, SBI, IBPS and all state level exams. 

Cooperative Bank Exam 2017 Quantative/ Maths Practice Set

Qn1. In the following question what will come in figure (?)
8597-?=7429-4358
A.5496
B.5526
C.5706
D.5476

B.5526
8597-X = 7429 - 4358
-X = 3071 - 8597
X = 5526

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Qn2. The HCF and LCM of two numbers x and y are respectively 3 and 105 if x + y = 36 then 1/X +1/Y =
A.35
B.3/5
C.4/35
D.1/35

C.4/35
HCF × LCM = X × Y
105 × 3 = XY
X = 315/Y  - (i)
X + Y = 36 (Given)
(315/Y)+ Y = 36 (Using i )
(315 + Y²)/Y = 36
Y² - 36Y + 315 = 0
Y = 21, 15 ∴ X = 21, 15
If X = 21 then Y = 15 and vice-versa.
(1/X) + (1/Y) = (1/21) + (1/15) = 12/105 = 4/35

Qn3. In the following what comes in the figure (?)

A.0.1
B.1.0
C.100
D.1000

C.100

Qn4. Simplify the following:

A.40
B.40.5
C.42.5
D.43

D.43
= 5(5/6) × 6(3/7) + 5(1/2)
= 35/6 × 45/7 + 11/2
= 225/6 + 11/2
= (225 + 33)/6 = 258/6
= 43 Ans

Qn5. If X ×√0.0016 = 4, then the value of X is :
A.0.04
B.4
C.25
D.100

D.100
X ×√0.0016 = 4
X × 0.04 = 4
X = 400/0.04
X = 100 Ans

Qn6. If 60% = 40%(x + y) then what percent of x is y?
A.20%
B.25%
C.22%
D.None of these

A.20%
60% = 40%(x + y)
(6/10) × (x - y) = (4/10) × (x + y)
3x - 3y = 2x + 2y
x = 5y
x/y = 5/1
To find, (y/x) × 100 = (1/5) × 100 = 20% Ans

Qn7. Of the three numbers, the ratio of first and second is 8:9 and that of second and third is 3:4. If the product of the first and third numbers is 2400, find out the second number :
A.40
B.60
C.45
D.50

C.45
First: Second = 8: 9
Second: Third = 3: 4 = 9: 12
First: Second: Third = 8: 9: 12
Now 8x × 12x = 2400
96x² = 2400
x² = 2400/96
x² =  25
x = 5
2nd number = 9x = 9 × 5 = 45 Ans.

Qn8. If 2^2x+4 = 16^x, then x³ =
A.2
B.4
C.8
D.16

C.8
2^2x+4 =16^x
2^2x+4 = 2^4x
2x + 4 = 4x
x = 2
x³ = 8

Qn9. Two numbers are respectively 20% and 50% more than a third number. These two numbers are in the ratio :
A. 2: 5
B. 4: 5
C. 6: 7
D. 3: 5

B. 4: 5
Let third number = 100%
1st number = 120%
2nd number = 150%
1st: 2nd = 120 : 150 = 4: 5
Which is 4: 5 Ans.

Qn10. Find out the missing number in the series 2, 5, 11, 20, 32, 47, ___ 86.
A.60
B.65
C.58
D.62

B.65
2, 5, 11, 20, 32, 47, 65, 86.
(+3 +6 +9 + 12 + 15 + 18 + 21)

Qn11. 'A' purchased some oranges at a total cost of Rs. 1200/-. He sold 1/3 part of these oranges at a loss of 20%. If 'A' had a profit of 10% then at what profit remaining oranges were sold?
A.16%
B.15%
C.22%
D.25%

D.25%
By allegation method,
-20%                 x
           +10%
1                        20

[10-(-20)]/[x - 10] = 2
[30] = 2x -20
50 = 2x
x = 25% Ans.

Qn12. A shopkeeper is selling his goods at cost price, but he uses 900 gms weight for 1 kg. His gain percentage is :
A.9%
B.10%
C.11%
D.11¹⁄9 %

D.11¹⁄9 %
Profit = [{Actual weight - Used weight}× 100]/Actual weight
= [{1000 - 900}/900] × 100
= 100/9
= 11¹⁄9 % Ans.

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