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If $\frac{ab - 1}{b} = \frac{cb - 1}{c} = \frac{ac - 1}{a}$ , then $(\frac{a}{c} + \frac{b}{a} + \frac{c}{b})$

A) 1	B) 2
C) 3	D) 4

A) 1

B) 2

C) 3

D) 4

Answer & Explanation Answer: C) 3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Find the unit digit of the expression

$31^{2} + 32^{2} + 33^{2} + 34^{2} + 35^{2} + 36^{2} + 37^{2} + 38^{2} + 39^{2}$

A) 1	B) 4
C) 5	D) 9

A) 1

B) 4

C) 5

D) 9

Answer & Explanation Answer: C) 5

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

LCM of 252, 308 and 198 is

A) 1443	B) 2124
C) 2545	D) 2772

A) 1443

B) 2124

C) 2545

D) 2772

Answer & Explanation Answer: D) 2772

Explanation:

Prime factors of

252 = 2 x 2 x 3 x 3 x 7;

308 = 2 x 2 x 7 x 11;

198 = 2 x 3 x 3 x 11

Therefore LCM of 252, 308 and 198 is 2 x 2 x 3 x 3 x 7 x 11 = 4 x 9 x 77 = 2772.

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

If the value of √30 is approximately 5.477, then what is the approximate value of $\sqrt{\frac{5}{6}}$ ?

A) 0.853	B) 0.891
C) 0.913	D) 0.937

A) 0.853

B) 0.891

C) 0.913

D) 0.937

Answer & Explanation Answer: C) 0.913

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

If $x^{2} + y^{2} + z^{2} - 8 x + 6 y - 4 z + 29 = 0$ , then find the value of z(x+y).

A) 1	B) 2
C) 3	D) 4

A) 1

B) 2

C) 3

D) 4

Answer & Explanation Answer: B) 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

If u+v = 10 and uv = 16, then find the value of $\frac{u^{2} - v^{2}}{uv}$

A) 0	B) 15/8
C) 15/4	D) 15/2

A) 0

B) 15/8

C) 15/4

D) 15/2

Answer & Explanation Answer: C) 15/4

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Which of the following cube in the answer figure cannot be based on the unfolded cube in the question figure?

A) 1	B) 2
C) 3	D) 4

A) 1

B) 2

C) 3

D) 4

Answer & Explanation Answer: C) 3

Explanation:

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Filed Under: Cubes and Dice
Exam Prep: Bank Exams

In the following question, select the missing number from the given series.

23, 19, 15, 11, ?

A) 3	B) 9
C) 5	D) 7

A) 3

B) 9

C) 5

D) 7

Answer & Explanation Answer: D) 7

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

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