Rahul Sofat Solutions for Chapter: Sample Test Paper 3, Exercise 1: Sample Test Paper 3 (CHAPTER 1 TO 7)

What is the difference between a fraction and a rational number? Is every rational number a fraction$?$ 

A box contains $4$ strips of antibiotic capsules. Each strip has $9$ capsules and each capsule contains $250 \mathrm{mg}$ of medicine. What will be the total weight of medicine in grams in $50$ such boxes$?$ 

Draw rough sketches of any four quadrilaterals and define them giving their characteristic properties. 

In an international seminar on Oncology, surgeons from different countries participated. $\frac{1}{8}$ of the participants were from the U.S., $\frac{1}{5}$ from the U.K.,  $\frac{1}{12}$ from other European countries and the remaining participants were Indian. If $71$ Indian surgeons participated, find the total number of surgeons who attended the seminar. 

Explain with example of the following property is true for whole numbers with respect to the operation of multiplication. 
Closure property 
 

State whether an associative property is true for whole numbers with respect to the operation of multiplication. 

Explain with example of the following properties are true for whole numbers with respect to the operation of multiplication. 

 Existence of multiplicative identity 
 

State if the following property is true for whole numbers with respect to the operation of multiplication. 
Existence of multiplicative inverse