Why is question 3 in List Operations 7?

Question

It doesn't make any sense! Why is it 7?!

Answer 1

nums = [10, 9, 8, 7, 6, 5]
nums[0] = nums[1] - 5
if 4 in nums:
print(nums[3])
else:
print(nums[4])

9-5 == 4 condition is true
so it will print 3rd number of array
[10,9,8,7,6,5]
[0,1,2,3,4,5]

Ans is 7

Answer 2

nums = [10, 9, 8, 7, 6, 5]
nums[0] = nums[1] - 5

nums[1] == 9
nums[0] = 9-5 == 4

if 4 in nums:
// this is the case
print(nums[3])
// nums[3] == 7, remember arrays index starts at 0
else:
print(nums[4])

Answer 3

the answer is 7

Answer 4

Answer is 7

Answer 5

7

Answer 6

List Operations
What's the result of this code?
nums = [10, 9, 8, 7, 6, 5]
nums[0] = nums[1] - 5
if 4 in nums:
print(nums[3])
else:
print(nums[4])

9-5 == 4 condition is true
so it will print 3rd number of array
[10,9,8,7,6,5]
[0,1,2,3,4,5]

Ans is 7

Answer 7

nums = [10, 9, 8, 7, 6, 5]
nums[0] = nums[1] - 5
if 4 in nums:
print(nums[3])
else:
print(nums[4])

answer
nums[0] =nums[1] -5
nums[0]=9-5 =4

replace 10 with new value 4
so we get new list
nums = [4, 9, 8, 7, 6, 5]

if 4 in nums:
print(nums[3]) this condition is true so it will print elemet nums[3]=7

answer=7

Answer 8

7

Answer 9

7