DELHI POLICE CONSTABLE QUANT QUIZ

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Question 1:

On selling an article for Rs 3600, there is a loss of $10\%$, then find its cost price.

Question 2:

In the expansion of $\left(a+a^{-2}\right)^{n-3}$ there will be a term containing a $2 \mathrm{r}$. If

Question 3:

Sum of the digits of a two digit number is 10 . If the number is decreased by 18 it get reversed, find the number.

Question 4:

The average age of a family of 5 members is 20 years. If the age of the youngest member be 10 years then what was the average age of the family at the time of the birth of the youngest member?

Question 5:

The circles of same radius $17 \mathrm{~cm}$ intersect each other at $A$ and $B$. If $A B=16 \mathrm{~cm}$, then the distance between their centres (in $\mathrm{cm}$ ) is: