-3 : $\mathrm{B}_{\mathrm{B}}^{\text {(D) }}$ the value of $\frac{\mathrm{AB}}{\mathrm{PB}}=$ 16．A bag contains red coloured，blue coloured and green coloured balls in the ratio $2: 3: 4$ ．A ball is drawn at random from the given bag．The probability that the ball so drawn being not of blue colour is （A）$\frac{1}{9}$ （B）$\frac{1}{3}$ （C）$\frac{2}{3}$ （D）$\frac{8}{9}$ 17．Which of the following statements is false ？ （A）Two right triangles are always similar． （B）Two squares are always similar． （C）Two equilateral triangles are always similar． （D）Two circles are always similar． 18．In the adjoining figure， ABCD is a trapezium in which $\mathrm{XY}\|\mathrm{AB}\| \mathrm{CD}$ ．If $\mathrm{AX}=\frac{2}{3} \mathrm{AD}$ ，then $\mathrm{CY}: \mathrm{YB}=$ （A） $2: 3$ （B） $3: 2$ （C） $1: 3$ （D） $1: 2$
Explanation
⬆ Related Topic
📘 Syllabus
📝 Practice Questions
Practice Previous Year Questions →
🤖 Practice with AI
Generate Practice Question Paper →
📚 Related Concepts
- Find the eigen values and eigen vectors of the matrix $A=\left[\begin{array}{ccc}-2 & 2 & -3 \\ 2 & 1 & -6 \\ -1 & -2 &
- Show that equations $$ \begin{aligned} & y-3 z=-1 \\ & x+z=1 \\ & 3 x+y=2 \\ & x+y-2 z=0 \end{aligned} $$ are consiste
- (a) Solve $x^{2} \frac{d^{2} y}{d x^{2}}-3 x \frac{d y}{d x}+4 y=x(\log x)^{2}$
- (a) Using Laplace transform, solve $y^{\prime \prime}-3 y+2 y=e^{-2 t}$, given that $y(0)=1, y^{\prime}(0)=0$.
- (b) Explain the working of a nuclear power plant. 10 OR 2 $\stackrel{\mathrm{H}-3555}{\text { 蜼 }}$