SSC CGL QUANT QUIZ-3

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Question 1:

The ratio of two positive numbers is 11: 13 and their HCF is 4 . What will be their least common multiple (LCM)?

Question 2:

Evaluate

$ \frac{(2.39)^{2}-(1.61)^{2}}{2.39-1.61} $

Question 3:

If $a=\frac{4}{5} b$ and $b=\frac{10}{9} c$, then the value of $a: c: b=$ ?

Question 4:

The sides of a triangle are in the ratio $\frac{1}{4}: \frac{1}{3}: \frac{1}{5}$. If the perimeter of the triangle is 188 cm, then the length (in $\mathrm{cm}$ ) of the largest side is:

Question 5:

Three taps A ,B and C can fill a tank in 12 , 15 and 20 hours respectively. If A is open for all the time and B and C are open for one hour each alternatively, the tank will be full in 

Question 6:

Speed of boat in upstream is $60 \%$ of the speed of boat in downstream. The speed of boat in still water is $6 \mathrm{~km} / \mathrm{hr}$ more than the speed of stream. Find the total time taken by boat to cover $70 \mathrm{~km}$ in downstream and $30 \mathrm{~km}$ in upstream together?

Question 7:

12 women can complete a work in 64 day, then find how many women will be required to complete 2/3 rd of the same work in 16 days?

Question 8:

Simplify $0.6+(\sqrt{0.81)}+\sqrt{(0.0144)}+0.4=?$

Question 9:

If the population of city A increases by $20 \%$ and then decreases by $24 \%$, it becomes equal to $16 \frac{1}{6} \%$ of city B's population. Find the population of city A initially, if B's population is 27,360 ?

Question 10:

Find the roots of the equation $x^{2}-21 x+38=0 ?$