DELHI POLICE QUANT QUIZ-1

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Question 1:

$A, B$ and $C$ can do a piece of work in 12 days, 15 days and 18 days respectively. The all start the work together but $A$ leaves after 2 days and $B$ leaves 4 days before the completion of work. In how many days work will be competed?

Question 2:

The maturity values of an amount in 5 and 6 years at 8% simple interest p.a. are Rs. 1120 and Rs. 1184 respectively. Find the amount.

Question 3:

The population of a town is 333750 . The ratio of women and men is $47: 42$. If there are $24 \%$ literate among women and $90\%$ literate, among men, the total no. of literate persons in the town is.

Question 4:

In what ratio must $30 \%$ of alcohol be mixed with $55 \%$ of alcohol to get a mixture of $45 \%$ strength alcohol.

Question 5:

The average of the 17 consecutive positive integers is 71 . The product of the largest and smallest integer is

Question 6:

In an isosceles triangle $\mathrm{ABC}, \mathrm{AB}=\mathrm{AC}$ and $\mathrm{AD}$ is perpendicular to $\mathrm{BC}$ at $\mathrm{D}$. If $\mathrm{AD}=8 \sqrt{3} \mathrm{~cm}$ and perimeter of triangle ABC is $128 \mathrm{~cm}$, then the area of $\mathrm{ABC}$ is:

Question 7:

The areas of three adjacent faces of a cuboid are $44 \mathrm{~cm}^{2}, 132 \mathrm{~cm}^{2}$ and $75 \mathrm{~cm}^{2}$. The volume of the cuboid is:

Question 8:

Find the value of $\left(\frac{4}{5}\right)$ of $11325+56 \%$ of $1750=(x)^{2}+436$

Question 9:

$\frac{\sqrt[]{1024}}{\sqrt{16}} \div \sqrt{\frac{1225}{25}} \times \sqrt[]{625}$ is equal to:

Question 10:

A boat covers 60 km downstream in 5 hours. If the difference between the downstream and upstream speed of the boat is 4 km/hr, then find the speed of the boat in still water?