0 votes
0 answers
2620
From a circular sheet of paper with a radius $20$ cm, four circles of radius $5$ each are cut out. What is the ratio of the uncut to the cut portion?$1: 3$$4: 1$$3: 1$$4:...
0 votes
1 answer
2622
$\text{PQRS}$ is a square. $\text{SR}$ is a tangent (at point $\text{S})$ to the circle with centre $\text{O}$ and $\text{TR = OS}$. Then the ratio of area of the circle ...
0 votes
1 answer
2624
1 votes
1 answer
2625
0 votes
0 answers
2629
0 votes
1 answer
2630
1 votes
1 answer
2631
If $x^{2}+y^{2}= 0.1$ and $\left | x-y \right |=0.2$, then $\left | x \right |+\left | y \right |$ is equal to$0.3$$0.4$$0.2$$0.6$
0 votes
0 answers
2636
In the figure above, $\text{AB = BC = CD = DE = EF = FG = GA}$. Then $\angle \text{DAE}$ is approximately$15^{\circ}$$20^{\circ}$$30^{\circ}$$25^{\circ}$
1 votes
1 answer
2637
Let $u_{n+1}=2u_{n}+1 \;(n=0,1,2,\dots)$ and $u_{n}=0$. Then $u_{10}$ nearest to ________