Question

The maximum marks of each subject are 150. A student scores 80% in Maths. In English he scores 70% of his score in Maths and in Hindi, he scores 75% of his score in English. Find his score in each subject​

Answer 1

$The\: maximum\:marks\:of\:all\: subjects\:=\:150$

$Math\:( \: 80\ \: \%) \: = \: \cancel\frac{80}{150} = \: 120 \: marks$

$(\:English\:70\ \: \% \: of \: maths \: marks \: ) \: = \: \cancel\frac{70}{100} \times 12 \: = \: 84 \: marks$

$Hindi\:(\:75 \: \% \: of \: english \: ) \: = \: \cancel\frac{75}{100} \times 84 \: = \: 63 \: marks$