Math, asked by christina5876, 3 months ago

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Answered by Athul4152

1

20. Initial temp = 40 ℃

temp after 10 hr = 40 - (10×5)

= -10 ℃

21. ¡ correct = 4

wrong = 6

marks = (4×5) - (2×6)

= 8 marks

¡¡ marks = (5×5) - (2×5)

= 25 - 10

= 10 marks

¡¡¡ marks = (2×5) - ( 2×5)

= 0 marks

Answered by mallickadyasha21

1

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