Question

Q.2 In a class test containing 15 questions , 4 marks are
given for every correct answer and (-2) marks are given
for every incorrect answer . A man attempts all
questions but only 9 of his answers are correct. What is
his total score ?
Q.3 Suppose we represent the distance above the
ground by a positive integer and that below the ground
by a negative integer. An elevator descends into a mine
shaft at 5m per minute. If begins to descend from 15 m
above the ground, what will be its position after
17minutes.
Q4. A green grocer had a profit of Rs.47 on Monday, a
loss of Rs.12 on Tuesday and loss of Rs.8 on Wednesday
Find his net profit or loss in 3 days.
Q5. Taking today as zero on the number line, if the day​

Answer 1

solution Q2

total marks = 15

marks for each correct = 4

marks for each wrong = -2

correct answer given by men = 9

:. 9×4= 36

total ouestions= 15

correct = 9

incorrect = total Q - correct Q

15 - 9

= 6

so 6×(-2)

= -12

so correct - incorrect

= total marks of men

= (-9) - (-12)=

= -9+12

[-+ = - ] so we will subtracting it

so it will be => 36 - 12

= 24

a will get 24marks out of 60

[ 60 = 15 ×4]

hence solved

rest I will solve later know im going to sleep bye bye