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What is the unit digit of $1^{5} + 2^{5} + 3^{5} + . . . + 20^{5}$ ?

A) 0	B) 5
C) 2	D) 4

A) 0

B) 5

C) 2

D) 4

Answer & Explanation Answer: A) 0

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1369

What is the value of $\frac{1}{3 \times 7} + \frac{1}{7 \times 11} + \frac{1}{11 \times 15} + . . . + \frac{1}{899 \times 903}$ ?

A) 21/509	B) 18/403
C) 25/301	D) 29/31

A) 21/509

B) 18/403

C) 25/301

D) 29/31

Answer & Explanation Answer: C) 25/301

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Filed Under: Simplification
Exam Prep: Bank Exams

0 939

If $(1 + \frac{1}{2}) (1 + \frac{1}{4}) (1 + \frac{1}{6}) (1 + \frac{1}{8}) (1 - \frac{1}{3}) (1 - \frac{1}{5}) (1 - \frac{1}{7}) = 1 + \frac{1}{x}$ , then what is the value of x?

A) 6	B) 8
C) 5	D) 7

A) 6

B) 8

C) 5

D) 7

Answer & Explanation Answer: B) 8

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Exam Prep: Bank Exams

0 824

If $\frac{1}{1 + \frac{1}{1 + \frac{1}{1 + \frac{1}{x}}}}$ = $\frac{5}{8}$ , then what is the value of x?

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

A) 2

B) 3

C) 1

D) 4

Answer & Explanation Answer: A) 2

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Exam Prep: Bank Exams

0 1063

What is the value of $\frac{3.6 \times 1.62 + 0.48 \times 3.6}{1.8 \times 0.8 + 10.8 \times 0.3 - 2.16}$ ?

A) 2.4	B) 2
C) 4	D) 3

A) 2.4

B) 2

C) 4

D) 3

Answer & Explanation Answer: D) 3

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Filed Under: Simplification
Exam Prep: Bank Exams

1 1970

What is the value of $\frac{1}{0.2} + \frac{1}{0.02} + \frac{1}{0.002} + . . . upto 9 terms$

A) 222222222	B) 111111111
C) 555555555	D) 525252525

A) 222222222

B) 111111111

C) 555555555

D) 525252525

Answer & Explanation Answer: C) 555555555

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Filed Under: Numbers
Exam Prep: Bank Exams

5 1677

What is the sum of first 40 terms of 1 + 3 + 4 + 5 + 7 + 7 + 10 + 9 + ....?

A) 1010	B) 1115
C) 1030	D) 1031

A) 1010

B) 1115

C) 1030

D) 1031

Answer & Explanation Answer: C) 1030

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Exam Prep: Bank Exams

5 1664

If N = 1 + 11 + 111 + 1111 + ... +111111111, then what is the sum of the digit's of N?

A) 45	B) 18
C) 36	D) 5

A) 45

B) 18

C) 36

D) 5

Answer & Explanation Answer: A) 45

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Exam Prep: Bank Exams

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