\(\bigtriangleup\) PQK
\(\bigtriangleup\) PKS
\(\bigtriangleup\) SKR
\(\bigtriangleup\) PSR
Correct answer is C
No explanation has been provided for this answer.
9o
10o
11o
12o
Correct answer is B
tan \(\theta\) = \(\frac{9}{50}\) = 0.18
\(\theta = tan^{-1} 0.18\)
\(\theta\) = 10.20
If 27x = 9y. Find the value of \(\frac{x}{y}\)
\(\frac{1}{3}\)
\(\frac{2}{3}\)
1\(\frac{1}{2}\)
3
Correct answer is B
27x = 9y
33x = 32y
3x = 2y
18
15
12
10
Correct answer is D
let the number of question = n
n(n + 50) = 600
n2 + 50n - 600 - 0 by quadratic formular
x = \(\frac{b \pm \sqrt{b^2 - 4ac}}{2}\)
n = \(\frac{-50 \pm \sqrt{50^2 - 4(1) (-600)}}{2(1)}\)
= \(\frac{-50 \pm \sqrt{4900}}{2}\)
= \(\frac{-50 + 70}{2}\)
= \(\frac{20}{2}\)
= 10
11cm
18cm
21cm
34cm
Correct answer is A
volume of rectangular container = L x B x H
1 litre = 1000cm3
96 litres = \(\frac{1000cm^3}{1 litres}\) x 96 litres
volume = 96000cm3
96000 = 220 x 40
96--- = 8800H
H = \(\frac{96000}{8800}\)
= 10.97cm
= 11cm
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