Question

four fifth of Raghav friends are wearing red shirts what percentage of his friends are wearing red shirts

Answer 1

80% of his friends are wearing red shirts

Answer 2

Number of Raghav's friends wearing red shirts=4
Total number of Raghav's friends=5
So, percentage of raghav's friends wearing red shirts=
$(4 \div 5) \times 100 \\ = 80\%$