Percentage & Ratio - Maths Theory and MCQs for PST JEST EST Test 2026

 Percentage & Ratio Maths MCQs - PST JEST EST Test 2026

Easy theory, formulas and 10 solved MCQs on percentage and ratio for PST, JEST and EST jobs test preparation. Practice online with instant results.

PST/JEST/EST, MCQs, Online Test, Jobs 2026

Percentage & Ratio

Maths Formulas and MCQs for PST, JEST and EST Jobs

Theory and Key Notes

• Percentage means 'out of 100'. Percentage = (Part / Whole) x 100.
• Fraction to percent: multiply by 100. Example: 3/4 x 100 = 75%.
• Percent of a number: (Percent / 100) x Number. Example: 25% of 80 = 20.
• Increase/Decrease % = (Change / Original) x 100.
• Ratio compares two quantities of the same kind (a : b). Always reduce it to the simplest form.
• Dividing in a ratio: add the ratio parts, then multiply each part by (Total / Sum of parts).
• Proportion means two ratios are equal: a : b = c : d, so a x d = b x c.

10 Important MCQs (Click on an answer)

Score: 0 / 10

1. 25% of 80 is:

A. 15

B. 20

C. 25

D. 30

2. 0.5 expressed as a percentage is:

A. 5%

B. 0.5%

C. 50%

D. 500%

3. 3/4 expressed as a percentage is:

A. 34%

B. 75%

C. 60%

D. 80%

4. The simplest form of the ratio 12 : 18 is:

A. 3 : 2

B. 6 : 9

C. 2 : 3

D. 4 : 5

5. A price of Rs. 500 is increased by 20%. The new price is:

A. Rs. 520

B. Rs. 550

C. Rs. 600

D. Rs. 700

6. A student gets 45 marks out of 60. The percentage is:

A. 65%

B. 70%

C. 75%

D. 80%

7. If a : b = 2 : 3 and b : c = 3 : 4, then a : c is:

A. 2 : 4

B. 1 : 3

C. 3 : 4

D. 2 : 3

8. Rs. 200 is divided in the ratio 3 : 2. The larger share is:

A. Rs. 80

B. Rs. 100

C. Rs. 120

D. Rs. 150

9. 15% of 200 is:

A. 20

B. 25

C. 30

D. 35

10. A 10% discount on Rs. 1,000 gives a selling price of:

A. Rs. 900

B. Rs. 800

C. Rs. 950

D. Rs. 990

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