DELHI POLICE MATHS QUIZ-19

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Question 1:

If x% of 180 is 25% less than (x + 350), then 18% of (x + 50) is what percentage more than 12% of x?

Question 2:

In an election, the votes cast for two candidates are in the ratio 3 : 10. If all votes are valid votes and if the successful candidates received 156200 votes, then the total votes polled are:

Question 3:

Rs. 3660 is divided, among $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$ such that B's share is $\frac{5}{9}$ th of A's; C's share is $\frac{7}{10}$ th of B's and $\mathrm{D}$ has $\frac{1}{3}$ as much as $\mathrm{B}$ and C together. Find the difference between A's and B's share(in Rs.)

Question 4:

The volume of a metallic cylindrical pipe is $1232 \mathrm{~cm}^{3}$. If its external radius is $7 \mathrm{~cm}$ and thickness is $2 \mathrm{~cm}$, then the length of the pipe (correct to one decimal place) (in cm) is: (Take $\pi=\frac{22}{7}$ )

Question 5:

Two trains have respective lengths of 460m and 180m. They cross each other completely in 32 seconds if they are travelling in opposite direction and in 64 seconds, if they are travelling in the same direction find the ratio of speed of two trains?

Question 6:

A can do piece of work in 8 days which B can destroy in 3 days. A has worked for 6 days, during the last 2 days of which B has been destroying. How many days must A now work alone to complete the work?

Question 7:

Find the value of the following:

$10+\{26-15 \times(20-5 \div 2 \times \overline{7-5})\}=?$

Question 8:

A bought two Shirts for Rs.1300 . He sold one shirt at profit of $20 \%$ and the other at a loss of 12 % If the SP of both shirts is same, then the cost price of each box is-

Question 9:

In a class, there were 28 boys and some girls. In a test, the mean score obtained by the boys was $12.5$ while that obtained by the girls was $14.5$. If the overall mean score was $13.1$, then what was the total number of students in the class?

Question 10:

Find the smallest number to be added to 1051 to be completely divisible by $33 .$