MCQ
Find the class marks of classes $10-20$ and $35-55$.
- A(10, 35)
- B(20, 55)
- ✓(15, 45)
- D(17.5, 45)
✓
Answer
Correct option: C.
(15, 45)
(c) : Class mark of class $10-20=\frac{10+20}{2}=15$ Class mark of class 35-55 $=\frac{35+55}{2}=45$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If $\alpha,\beta,\gamma$ are the zeros of the polynomial $f(x) = ax^3+ bx^2+ cx + d,$ then $\frac{1}{\alpha}+\frac{1}{\beta}+\frac{1}{\gamma}=$
→Which of the following figure represents the graph of linear polynomial?
The ratio of the total surface area to the lateral surface area of a cylinder with base radius $80\ cm$ and height $20\ cm$ is:
→If $\frac{6}{5}, a$, and 4 are in AP then $a=$ ............
→A box contains 100 red cards, 200 yellow cards and 50 blue cards. If a card is drawn at random from the box, then find the probability that it will be neither yellow nor a blue card.
From the figure, shadded region is called.
If $\tan ^2 45^{\circ}-\cos ^2 30^{\circ}=x \sin 45^{\circ} \cos 45^{\circ}$, then $x=$
→The sum and product of the zeros of a quadratic polynomial are $3$ and $-10$ respectively. The quadratic polynomial is:
→The $LCM$ of two numbers is $1200$. Which of the following cannot be their $HCF?$
→The radii of the circular ends of a bucket of height $40\ cm$ are $24\ cm$ and $15\ cm$. The slant height (in cm) of the bucket is:
→