1.

How many students have scored marks 20 or more but less than 40?1). 552). 293). 424). 97

Answer»

⇒ Students between 20 and 30 = 55 – 42 = 13

⇒ Students between 30 and 40 = 42 – 26 = 16

TOTAL students between 20 and 40 = 13 + 16 = 29


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