• A. 1
• B. xy
• C. x + y

Answer: Option C

Explanation:

• A. 1/6
• B. 1/12
• C. 1/3
• D. 1/9

Answer: Option A

Explanation:

• A. ${\left(n-1\right)}^2$
• B. ${\left(n+1\right)}^2$
• C. $n^2$
• D. $n^2+1$

Answer: Option A

Explanation:

• A. q = (p + r)/2
• B. q/p = p/q
• C. r = (q + s)/2
• D. q/p = s/r

Answer: Option D

Explanation:

• A. 1/4
• B. 1/5
• C. 1/2
• D. 1/3

Answer: Option A

Explanation:

• A. mn
• B. n/m
• C. 1
• D. -1

Answer: Option D

Explanation:

• A. 513
• B. 515
• C. 509
• D. 511

Answer: Option A

Explanation:

• A. 7log3
• B. 8log3
• C. 6log3
• D. log3

Answer: Option B

Explanation:

• A. 182
• B. 1456
• C. 728
• D. 364

Answer: Option D

Explanation:

• A. 10x + 45
• B. 10x + 51
• C. 10x + 47
• D. 10x + 43

Answer: Option A

Explanation:

• A. - 9/4
• B. 3/2
• C. 9/4
• D. 3/4

Answer: Option B

Explanation:

• A. ২০/২৭
• B. ৭/২৭
• C. ১৯/২৭
• D. ১৮/২৭

Answer: Option C

Explanation:

• A. 2
• B. 3/2
• C. 1
• D. 5/4

Answer: Option C

Explanation:

• A. ৭৪
• B. ৯০
• C. ৮২
• D. ১০৬

Answer: Option C

Explanation:

• A. 98
• B. 106
• C. 102
• D. 112

Answer: Option C

Explanation: