Question

The total number of students in a class are 90 out of which 45 are boys. If 50% of the total students secured grade 'A' out of which 20 are boys, then write a program to calculate the total number of girls getting grade 'A'.

Answer 1

$[]{\huge{\boxed{\mathfrak{\blue{answer}}}}}[]$

25 GIRLS

$[]{\large{\boxed{\mathfrak{\pink{explanation \: for \: answer}}}}}[]$

TOTAL NUMBER OF STUDENTS =90

WHICH MEANS [45 BOYS]

AND [45 GIRLS]

$[]{\small{\boxed{\mathfrak{\blue{Students \: got \: [a] grade}}}}}[]$

NOW STUDENTS OF A GRADE

$90 \times 50/100 \\ = 45$

SO 45 GOT (A) GRADE

OUT OF THAT 2O BOYS

$20 - 45$

MEANS GIRLS GOT (A) GRADE ARE

25

VERIFIED