Basics of Number Systems

A certain sum of money distribute among $A, B$ $C$ in such that $A$received thrice as$B$and  two and half time as $C$.$C$ Receive Rs. $4500$ More than $\mathit{B}$ Than the money of $B$ is-

How many numbers are there between $500$and$600$ in which $9$ occurs only once?

A number is divisible by $4$ if its:

If all the numbers from 4 to 71 which are divisible by 4 are arranged in descending order, then which number will be at 8th place from the top ?

The sum of the two numbers is $20$ and their product is $75$. What is the sum of their reciprocals?

A newspaper sold for Rs. $5$ and earn $15\%$ commission. One dealer sold $1200$ copies per day, then how many Rs. he get commission in a month?

What is $35\%$ of a number if $12$ is $15\%$ of the number?

Consider all those two-digit positive integers less than $50$, which when divided by $4$yield unity as remainder. What is their sum?

$12$ girls decided to contribute $₹750$ each and buy a gift for their teacher. Suddenly, a few of the girls dropped out and consequently, the rest of the girls had to pay $₹150$ more. Find the the number of girls who dropped out.

Make the greatest and the smallest four-digit number using any four-digits number with digit $5$ always at thousand place.

The simplified value of $\frac{3.47\times 3.47-2.53\times 2.53}{0.94}-\frac{12.50}{6.25}$ will be ?

What is the sum of two consecutive even numbers, if the difference of their sequence is $92$.

When a number is divided by$13$, the remainder is $11$. When the same number is divided by $17$, then remainder is $9$. What is the number ?

There are $40$ coins in a bag, consisting of $\mathrm{Rs}.5$ and $\mathrm{Rs}.2$ coins. If the total amount is $\mathrm{Rs}.140$, how many $\mathrm{Rs}.2$ and $\mathrm{Rs}.5$ coins are there in the bag?

The product of two positive numbers is $2500$. If one is four times the other, then the sum of the two numbers is:

The sum of two numbers is $15$ and the sum of their squares is $113$. The numbers are

The sum of all prime numbers between $20$ and $60$ is -

Find the smallest number which is when divided by $12,16 and 18$, the remainder in each case is $5$

$47$ is added to the product of $71$ and an unknown number. The new number is divisible by $7$ giving the quotient $98$. Then which of the following is the multiple of that number-

In countries like U.S.A. and Canada, temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a liner equation that converts Celsius to Fahenheit.$F=\frac{9}{5}C+32$.Find the co-ordinates of the above euqation which is numerically the same in both Fahrenheit and Celsius