Two marks exercise problems XII — task. Mathematics State Board, Class 8.

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Give the answer in scientific notation:

A human heart beats at an average of \(80\) beats per minute. How many times does it beat in

(i) an hour \(=\)

i \times i^{i}

(ii) a day \(=\)

i \times i^{i}

(iii) a year \(=\)

i \times i^{i}

(iv) \(100\) years \(=\)

i \times i^{i}

Did you find an error?

19. Two marks exercise problems XII