If the word PHOTOGRAPH is spelt with ‘F’ in place of ‘PH’, then what would be the percentage reduction in the number of letters?

20% 18% 10% 25%

20%

Total word in PHOTOGRAPH is = 10 If PH is replaced by F, then the total word in FOTOGRAF is = 8 Required percentage = \(\frac{10-8}{10}\) × 100 = 20%