Question

A test has twenty questions for 100 marks, if
the test consists true / false questions of 3
marks each and multiple choice questions of
11 marks each, then the number of
true/false questions is​

Answer 1

Answer:

THE NUMBER OF TRUE OR FALSE QUESTIONS COULD BE 4 , 15 , 16

Answer 2

Answer:

Here is ur answer

Step-by-step explanation:

$test \: has \: 100 \: marks$

$totl \: questions \: are \: 20$

$let \: mcq \: questions \: be \: x$

$let \: true \: or \: false \: \\ questions \: be \: 20 - x$

$so \: 11x + 3(20 - x) = 100$

$11x + 60 - 3x = 100$

$8x = 100 - 60$

$8x = 40$

$x = \frac{40}{8}$

$x = 5$

$if \: x \: is \: 5 \: the \\ \: number \: of \: true \: or \: false \: \\ questions \: are \: 20 - 5$

$so \: mcq \: questions \: are \: 5 \: \\ and \: the \: true \: or \: false \: questions \: \\ are \: 15$