1. A number is increased by 30% and then decreased by 10%. What is the net percentage change?
A) 17% increase B) 20% increase C) 17% decrease D) 10% increase

2. If 25% of a number is 50, what is the number?
A) 150 B) 200 C) 250 D) 300

3. A student scored 84 marks which is 70% of total marks. Find the total marks.
A) 100 B) 110 C) 120 D) 140

4. A number is decreased by 20% and becomes 240. What was the original number?
A) 250 B) 280 C) 300 D) 320

5. In a class, 40% students are girls. If total students are 60, how many boys are there?
A) 24 B) 30 C) 36 D) 40

6. Convert 7/8 into percentage.
A) 85% B) 87.5% C) 90% D) 92.5%

7. A number is increased from 200 to 260. Find the percentage increase.
A) 20% B) 25% C) 30% D) 35%

8. A square field has perimeter 80 m. Find the cost of fencing at ₹2 per meter.

A) ₹120 B) ₹140 C) ₹160 D) ₹180

9. The area of a square is equal to the area of a rectangle of length 16 cm and breadth 9 cm. Find the side of the square.
A) 10 cm B) 11 cm C) 12 cm D) 13 cm

10. A rectangular field is 30 m long and 20 m broad. Find the cost of fencing it at ₹5 per meter.

A) ₹400 B) ₹500 C) ₹600 D) ₹700

11. The side of a square is increased by 20%. Find the percentage increase in its area.

A) 20% B) 40% C) 44% D) 48%

12. A rectangular floor of length 12 m and breadth 8 m is to be tiled at ₹25 per m². Find the total cost.

A) ₹2000 B) ₹2200 C) ₹2400 D) ₹2600

13. The length of a rectangle is 5 m more than its breadth. If its perimeter is 50 m, find the length.

A) 15 m B) 10 m C) 20 m D) 25 m

14. The perimeter of a rectangle is 100 m. If its length is 10 m more than its breadth, find the area.
A) 500 m² B) 600 m² C) 625 m² D) 700 m²

15. The ratio of length and breadth of a rectangle is 8 : 5 and its perimeter is 104 m. Find the area.

A) 320 m² B) 400 m² C) 420 m² D) 500 m²

16.. The ratio of length and breadth of a rectangle is 9 : 7 and its perimeter is 128 m. Find the cost of tiling at ₹2 per m².
A) ₹1008 B) ₹1024 C) ₹1152 D) ₹1200

17. [ (60 − 24) ÷ (4 + 2) + {3 × (5 + 1)} ]

A) 18 B) 20 C) 24 D) 30

18. A submarine is at −80 m below sea level. It rises 35 m and then descends 20 m. What is its final position?
A) −65 m B) −75 m C) −85 m D) −95 m

19. The sum of three integers is −120. Two of them are 45 and −35. Find the third integer.

A) −130 B) −110 C) −100 D) −90

20. The product of two integers is 360. If one integer is −12, find the other.
A) 30 B) −30 C) 24 D) −24

21. The temperature at noon is 10°C. It drops by 8°C every hour for 3 hours. What is the temperature after 3 hours?

A) −14°C B) −10°C C) −6°C D) −4°C