please answer my question it is very important
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Answer:
14. 30 minutes
15. i) 10
ii) 16
16. a) 4.73 kg
b) 8.004 kg
17. 40.5 km
Step-by-step explanation:
14.
total distance to be covered = distance to be travelled -distance already travelled =
-205-5=210 m
time = distance/speed
time= 210/7=30minutes
15.
i) if neha got 10 correct answers and scored 30 , it means ,
she should have scored 50 marks for 10 X 5 =50
it means that she got 20marks deducted
so no. of incorrect answer she probably got is ,
50-30/2=20/2=10
So total no. of ques is 20
ii) if he got 4 correct answers , he should have scored 20 marks but he got -12
sono. of incorrect ans he got is 20-(-12)/2=20+12/2=32/2=16
Hope it helps ...
If it helps you then please mark as brainliest !!
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Are you in class 7th I am also in class 7th my name is Tanushka chaudhary, do you know me?
if you know me so mark as brainlist please
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