Question

The number of boys and girls in a class are in the ratio 8 : 7. The number of boys is 15 more than the number of girls. What is the total class strength? [2 MARKS]

Answer 1

Concept: 1 Mark
Application: 1 Mark

Let the number of boys in the class $=8x$

Number of girls in the class $=7x$

From question

$8x=7x+15$

$x=15$

Number of boys in the class $=8x=8\times 15=120$

Number of girls in the class $=7x=7\times 15=105$

Total number of student in the class $=120+105=225$