MCQ
$8, 24, 48, 80, 120, .....:$
- A$158$
- B$162$
- C$164$
- ✓$168$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Class: | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ |
| Frequency | $2$ | $3$ | $x$ | $5$ | $4$ |
is $28$ , then its variance is $........$.