DELHI POLICE CONSTABLE MATH QUIZ 1

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Question 1:

Find ' X ' if the below three numbers are in proportion.

2.6,1.3,X

Question 2:

Find the largest number which when subtracted from 1000 , the remainder is divisible by $32,36,48$ and 54?

Question 3:

If $a+\frac{1}{a}+2=0$, then the value of $(a+2)^{2}+\frac{1}{(a+2)^{3}}$ is

Question 4:

The edges of a rectangular box area in ratio $2: 3: 4$ and its surface area is $832 \mathrm{~cm}^{2}$ then find volume of the box .

Question 5:

By selling an article at Rs 450 a man loses something. But whenever he sells it at Rs 900 he gains twice the amount he lost. Find the selling price if he sells the article at $20 \%$ profit.

Question 6:

A man can row $900 \mathrm{~m}$ against the stream in 12 minute and returns to the same point in 9 minute. What is the speed of stream in km/hr?

Question 7:

The average of five consecutive even numbers is M. If the next five even numbers are also included, the average of ten numbers will be:

Question 8:

The difference between compound interest (compounded annually) and simple interest on a certain sum of money at $10 \%$ per annum for 2 years is Rs. $40 .$ The sum is ;

Question 9:

$n$ is a whole number which when divided by 4 gives the remainder $3 .$ What will be the remainder when $2 n$ is divided by 4 is -

Question 10:

Which of the following number are more than $5 \frac{6}{7}$ but less than $6 \frac{2}{3}$.