Editorial Board Solutions for Chapter: Arithmetic Maths, Exercise 1: PROBLEM ON NUMBERS

A number consists of two digits. If $\frac{3}{5}$ of $\frac{1}{5}$of the number is $9$. Find the sum of its two digits.

Subtracting $30$ from a number, the remainder is $\frac{1}{4}$ of the number, find the number.

Sum of the digits of the number is $8$ and their product is $12$. Find the difference between the digits.

What is the difference between the largest number and the least number with the digits $7, 3, 1, 4$?

What is the difference between the largest and smallest number written with $7, 7, 0, 7 ?$

Which one of the following is the sum of the numbers $1, 3, 5, 7, 9$ ... up to $nth$ number?

Which one of the following represents the sum of the first $n$ even numbers?

What is the sum of all even numbers from $1$ to $701$?