MCQ 11 MarkIf $\frac{4 a+9 b}{4 c+9 d}=\frac{4 a-9 b}{4 c-9 d}$, then $a: b=$A$c: d$B$d: c$C$c: d+c$D$d: c-d$AnswerSelfView full question & answer→
MCQ 21 Mark$x, y, z$ are in continued proportion, then $\frac{x}{z}$ is equal to :A$\frac{y^2}{z^2}$B$\frac{y^2}{x^2}$C$x^2 y^2$D$\frac{x}{y^2}$AnswerSelfView full question & answer→
MCQ 31 MarkIf three quantities $a, b, c$ are in continued proportion, then the mean proportion between :A$a$ and $c$ is $b$B$b$ and $c$ is aC$c$ and $a$ is $b$Dall the above are trueAnswerSelfView full question & answer→
MCQ 41 MarkTwo numbers are in the ratio $1: 4$. If the mean proportion between them is $28$ and third proportional to them is $224$ , then the smaller number is :A12B14C16D21AnswerSelfView full question & answer→
MCQ 51 MarkIf $2 x=3 y$ and $4 y=5 z$, then $\frac{8 x}{z}$ is equal to :A5B15C10D8AnswerSelfView full question & answer→
MCQ 61 MarkThe mean proportion between $a^2 b$ and $\frac{1}{b}$ is :A$a$B$a^2$C$a b$D$\sqrt{a b}$AnswerSelfView full question & answer→
MCQ 71 MarkIf $\frac{a}{b}: \frac{c}{d}$, then each ratio is equal to :A$a+b: c+d$B$a+c: b+d$C$a+d: b+c$D$a-b: c-d$AnswerSelfView full question & answer→
MCQ 81 MarkThe third proportional to $x-y$ and $x^2-y^2$ is :A$(x+y)\left(x^2-y^2\right)$B$(x-y)\left(x^2+y^2\right)$C$\left(x^2-y^2\right)\left(x^2+y^2\right)$D$(x+y)(x-y)$AnswerSelfView full question & answer→
MCQ 91 MarkThe fourth proportional to 3, 6 and 4.5 is :A10B9C8.5D6AnswerSelfView full question & answer→
MCQ 101 MarkIf $\frac{a}{b}=\frac{c}{d}$, then $\frac{a+c}{b+d}$ is equal to :A$\frac{a}{b}$B$\frac{c}{d}$Cboth (a) and (b)Dneither (a) nor (b)AnswerSelfView full question & answer→
MCQ 111 MarkIf $a: b=2: 3$ and $b: c=4: 5$, then $a: c$ is :A$12: 15$B$15: 7$C$15: 8$D$8: 15$AnswerSelfView full question & answer→
MCQ 121 MarkThe mean proportion between $x-y$ and $x^3-x^2 y$ is :A$x(x+y)$B$x^2(x-y)$C$x^2(x+y)$D$x(x-y)$AnswerSelfView full question & answer→
MCQ 131 MarkIf $x: y=2: 3$, then $\frac{3 x+2 y}{2 x+5 y}$ is :A$\frac{12}{19}$B$\frac{19}{12}$C$\frac{12}{13}$D$\frac{19}{21}$AnswerSelfView full question & answer→
MCQ 141 MarkThe fourth proportional to $3,12,15$ is :A40B45C60D62AnswerSelfView full question & answer→
MCQ 151 MarkThe mean proportion between 28 and 63 is :A42B45C36D32AnswerSelfView full question & answer→
MCQ 161 MarkIf $\frac{7 m+2 n}{7 m-2 n}=\frac{5}{3}$, then $m: n$ is :A$7: 8$B$2: 7$C$8: 7$D$1: 8$AnswerSelfView full question & answer→
MCQ 171 MarkThe third proportional to 9 and 15 is :A10B15C18D25AnswerSelfView full question & answer→
MCQ 181 MarkThe fourth proportional to 7,13 and 35 is :A65B62C52D50AnswerSelfView full question & answer→
MCQ 191 MarkIf $a: b=5: 3$, then $(5 a+8 b):(6 a-7 b)$ is equal to :A$40: 9$B$9: 49$C$49: 9$D$25: 9$AnswerSelfView full question & answer→
MCQ 201 MarkIf $x^2, 4$ and $9$ are in continued proportion, then the value of $x$ is :A$\frac{2}{3}$B$\frac{4}{3}$C$\frac{3}{4}$D$\frac{16}{9}$AnswerSelfView full question & answer→