Question

A boy secured 28% of 500 and failed in the examination by 10 marks. Find the passing marks? % and passing marks.​

Answer 1

Appropriate Question :

A boy secured 28% of 500 and failed in the examination by 10 marks. Find the passing marks? Find the passing %

_____________________

Given :

• Passing marks = 28% of 500 +10

_____________________

Solution :

given, the boy secured 28% marks .

so, 28% of 500

= 28/100 × 500

= 28 × 5

= 140

so, the boy secured 140 marks .

Hence, The passing marks = 140+10 = 150

Passing % = 150/500 × 100

or, passing % = 150/5

or, passing % = 30%

hence, passing percentage = 30%

_____________________

Additional Information :

• 1 % = 1/100
• 1 ‰ (per-mille) = 1/1000
• 1 % = 10 ‰
• 10 % = 1/10
• 100 % = 1
• 10 ‰ = 1/100
• 100 ‰ = 1/10
• 1000 ‰ = 1