Question

(d) [(-72) + (-12)] + [36 +18]
(e) [(-6)+8)=2
In a class test of Science, (+3) marks are given for every correct answer and (-2) marks are given for every
wrong answer and no marks for not attempting the question. Rahul scores 20 marks. If he has got 10
correct answers, how many questions has he attempted wrongly?
m/min If the descent starts from 20m above the
of​

Answer 1

Step-by-step explanation:

answer is in the picture