Question

1. In a class of 60 students, 75% of students passed in Mathematics. Find the number of students who failed in it.
a. 50
b. 15
c. 30
d. 55

Answer 1

★GIVEN★

In a class of 60 students, 75% of students passed in Mathematics.

★To Find★

The number of students who failed in mathematics.

★SOLUTION★

Total no of students = 60.

No of students who passed in mathematics is,

$\large\implies{\sf{75\%\:of\:60}}$

$\large\implies{\sf{\dfrac{75}{100}\times60}}$

$\large\implies{\sf{\dfrac{75}{100}\times60}}$

$\large\therefore\boxed{\bf{No\:of\:students\:passed=45.}}$

No of students failed in mathematics = 60 - 45 = 15

$\large{\green{\underline{\boxed{\bf{No\:of\:students\:failed\:in\:mathematics\:is\:15.}}}}}$