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keval phade from smo, pan
Subject :IMO    Class : Class 4

Prerna can type 90 words in 180 seconds. Find the number of words can she type in 300 seconds, if she maintains the constant speed.

A 100
B 150
C 780
D 200


how to solved this problem?

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9
** The answer is B **

Ans 2:

LAASSINII from NARAYANA SCHOOL, PALAMANER
Class : Class 4
*OPTION B*

Ans 3:

Arihaan Adhikari from Modern Delhi International School, Sector 87, Faridabad
Class : Class 8

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