• A. $\frac{yz}{x}\% of a$
• B. $\frac{xy}{z}\% of a$
• C. $\frac{xz}{y}\% of a$
• D. All of these

Answer: Option C

Explanation:

• A. $\frac{3x}{200}$
• B. $\frac{3x}{2}$
• C. $\frac{x}{100}$
• D. $\frac{x}{100}+5$

Answer: Option A

Explanation:

• A. $x^2+5x+6=0$
• B. $a^2+10a+9=0$
• C. $4x+5=9$
• D. ${\left(p+q\right)}^2=p^2+2pq+q^2$

Answer: Option D

Explanation:

• A. ${27}^x$
• B. $3^{2x+1}$
• C. $9^{3x}$
• D. $3^{x3}$

Answer: Option B

Explanation:

• A. $-3<x<3$
• B. $-5/3<x<\frac{5}{3}$
• C. $-3<x<\frac{5}{3}$
• D. $-\frac{5}{3}<x<-\frac{5}{3}$

Answer: Option C

Explanation:

• A. $২৩°$
• B. $২২\frac{১}{২}°$
• C. $২০°$
• D. $২৩\frac{১°}{২}$

Answer: Option B

Explanation:

• A. $3x^2+7x+6670$
• B. $2x^2+10x+6$
• C. $3x^2+12x+6$
• D. $3x^2+11x+6$

Answer: Option D

Explanation:

• A. ${}^{n}C_2$
• B. $\frac{{}^{n}C_2}{2!}$
• C. ${}^{n}C_2-2$
• D. ${}^{n}C_2-n$

Answer: Option D

Explanation:

• A. $৪৫°$
• B. $৯০°$
• C. $৬০°$
• D. $৩০°$

Answer: Option B

Explanation:

• A. $\pm \sqrt{2}$
• B. $\pm 5\sqrt{2}$
• C. $\pm 2\sqrt{2}$
• D. $\pm 3\sqrt{2}$

Answer: Option C

Explanation:

• A. x=0
• B. x+y=1
• C. 3x + 4y = 3
• D. $y=\frac{1}{x}$

Answer: Option D

Explanation:

• A. $0°$
• B. $360°$
• C. $180°$
• D. $90°$

Answer: Option B

Explanation:

• A. $120°$
• B. $180°$
• C. $0°$
• D. $00°$

Answer: Option B

Explanation:

• A. ${\left(x-2\right)}^2+{\left(y-3\right)}^2=3^2$
• B. ${\left(x-2\right)}^2+{\left(y-3\right)}^2=2^2$
• C. ${\left(x-2\right)}^2+{\left(y+3\right)}^2=3^2$
• D. ${\left(x+2\right)}^2+{\left(y+3\right)}^2=2^2$

Answer: Option C

Explanation:

• A. a + b = c
• B. $a^2+b^2=c^2$
• C. ${\left(a+b\right)}^2=c^2$
• D. কোনটিই নয়

Answer: Option B

Explanation: