DELHI POLICE CONSTABLE QUANT QUIZ

Attempt now to get your rank among 15 students!

Question 1:

Direction : What approximate value should come in place of question mark (?) in the following equations?

$4140.04 \div 36.06+55 \times(8.998)^{2}=$ ?

Question 2:

If $a+b+c=12$ and $a^{2}+b^{2}+c^{2}=134$ then find the value of $b c(b+c)+a c(c+a)+a b(a+b)+3 a b c$

Question 3:

Population of Aligarh is increased by $30 \%$ in 2018, In the next year i.e. $2019,25 \%$ populatiion left from Aligarh and in $2020,20 \%$ of the population die due to Corona. If present population of Aligarh is $3,90,000$, then find initial population?

Question 4:

The average age of a husband and wife was 23 years when they were married 5 years ago. The average age of the husband, the wife and a child who was born during the interval, is 20 years now. How old is the child now?

Question 5:

What is the value of $x$, if $\frac{b+\sqrt{b^{2}-2 b x}}{b-\sqrt{b^{2}-2 b x}}=a $