Subject Experts Solutions for Chapter: Number System, Exercise 1: Target Exercise

The total number of factors of $120$ is

The LCM of two numbers is $45$ and their HCF is $5,$ how many such pairs of numbers are possible?

The unit's digit of ${12}^{222}+{23}^{333}+{34}^{444}$ is

${15}^3-8^3-7^3$ is divisible by which of the following?

The least number which should be multiplied with $525,$ so that it becomes a perfect square is

If $x+\frac{1}{1+{\displaystyle \frac{1}{2+{\displaystyle \frac{1}{3}}}}}=2,$ then what is $x$ equals to?

The area of the smallest square which can be formed with rectangles dimension $6 cm\times 4 cm,$ is

The remainder when ${13}^6-3^6$ is divided by $2170$ is