Home/Class 8/Maths/

Question and Answer

A dice is thrown two times and sum of the numbers appearing on the dice are noted. The number of possible outcomes is( )
A. \(6\)
B. \(11\)
C. \(18\)
D. \(36\)
loading
settings
Speed
00:00
03:23
fullscreen

Question

A dice is thrown two times and sum of the numbers appearing on the dice are noted. The number of possible outcomes is( )
A. \(6\)
B. \(11\)
C. \(18\)
D. \(36\)

Answer

B
To Keep Reading This Answer, Download the App
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
To Keep Reading This Answer, Download the App
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play

Solution

A dice has \(1, 2, 3, 4, 5, 6\) numbers over it.
When a dice is thrown twice, the possible sum of the numbers will be \(2, 3, 4,5,6,7,8,9,10,11,12\)
Like: \(2=1+1\), \(3=2+1\ \text{or}\ 1+2\), \(7=1+6,2+5,3+4,4+3,5+2,6+1\), \(8=1+7,7+1,2+6,6+2,3+5,5+3,4+4 \) etc.
To Keep Reading This Solution, Download the APP
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
To Keep Reading This Solution, Download the APP
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
Correct34
Incorrect0
Watch More Related Solutions
\( sin\left(\frac{\pi }{10}\right)sin\left(\frac{3\pi }{10}\right)=\)
a.1/2
b.-1/2
c.1/4
d.1
Find the number of 4 digit numbers that can be formed using the digits 1,2,3,4,5 if no digit is repeated. How many of these will be even?
The coefficient of \( {x}^{52}\) in the expansion
\( \sum _{m=0}^{100}{100}_{{C}_{m}}{\left(x-3\right)}^{100-m}{.2}^{m}\)
is:
a.\(^{ 100}\)C\(_{47}\)
b.\(^{100}\)C\(_{48}\)
c.-\(^{100}\)C\(_{52}\)
If one root of equation \( (l-m){x}^{2}+lx+1= 0\) be double of the other and if \( l\) be real, show that \( m\le \frac{9}{8}\).
The solution set of the equation \( 4\sin\theta \cos\theta -2\cos\theta -2\sqrt{3}\sin\theta +\sqrt{3}=0\) in the interval \( (0, 2\pi )\) is( )
A. \( \left\{\frac{3\pi }{4},\frac{7\pi }{4}\right\}\)
B. \( \left\{\frac{\pi }{3},\frac{5\pi }{3}\right\}\)
C. \( \left\{\frac{3\pi }{4},\pi ,\frac{\pi }{3},\frac{5\pi }{3}\right\}\)
D. \( \left\{\frac{\pi }{6},\frac{5\pi }{6},\frac{11\pi }{6}\right\}\)
Find the sum to \( n\) terms of the sequence \( 1.3{.2}^{2}+2.4{.3}^{2}+3.5{.4}^{2}+\cdots \)
If one root of the equation \( {x}^{2}-x-k=0\) be square of the other, then k is equal to
A.\( 2\pm \surd\;3\)
B.\( 3\pm \surd\;2\)
C.\( 2\pm \surd\;5\)
D.\( 5\pm \surd\;2\)
If \( \theta =\frac{\pi }{4n}\) then the value of \( tan \theta\;tan \left(2\theta \right) tan \left(3\theta \right).... tan \left(\right(2n-1\left)\theta \right)\) is
A travelling harmonic wave is represented by the equation \( y\left(x,t\right)= {10}^{-3}sin\left(50\;t+2x\right)\), where x and y are in meter and t is in seconds. Which of the following is a correct statement about the wave?
The wave is propagating along the
a.negative x-axis with speed 25\( {ms}^{-1}\)
b.The wave is propagating along the positive x-axis with speed 25\( {ms}^{-1}\)
c.The wave is propagating along the positive x-axis with speed 100\( {ms}^{-1}\)
d.The wave is propagating along the negative x-axis with speed 100\( {ms}^{-1}\)
If \( sin\theta =\frac{1}{2}\), \( cos\phi =\frac{1}{3}\), then \( \theta +\phi \) belongs to, where \( 0\lt \theta , \phi \lt \frac{\pi }{2}\)( )
A. \( \left(\frac{\pi }{3},\frac{\pi }{2}\right)\)
B. \( \left(\frac{\pi }{2},\frac{2\pi }{3}\right)\)
C. \( \left(\frac{2\pi }{3},\frac{5\pi }{6}\right)\)
D. \(  \left(\frac{5\pi }{6},\pi \right)\)

Load More