Identify the diagram that best represents the relationship among the given classes.
Olympic games, Tennis, Wrestling, Ludo
1).
2).
3).
4).
What is the unit of relative density?
1). kg/m
2). kg/m2
3). kg/m3
4). It has no unit
If sec$(\frac{-7π}{4})$ = x, then the value of x is
1). √2
2). -√2
3). $\frac{1}{√3}$
4). -1
A shopkeeper by selling 13 Titan watches, earns a profit equal to the selling price of 3 Titan watches. His profit percentage is
1). 30 percent
2). 23.0 percent
3). 46 percent
4). 16 percent
25% discount is offered on an item. By applying a promo code the customer wins 4% cash back. What is the effective discount?
1). 28 percent
2). 29.12 percent
3). 29 percent
4). 5 percent