Q.12. Explain Harvard step test. Calculate the fitness index of an athlete with a heartbeat total of 200
seconds. Also describe the category according to the norms.
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∆ABC ∼ ∆PQR and their areas are in the ratio 49 : 16. If BC = 7cm,
then the length of QR is ____.
A) 4cm B) 10cm C) 7cm D) 3cm
=3333333
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