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Samidha from Vagdevi vilas school, Bengaluru
Subject :Sam    Class : Sample

Find the number of coins, each of which are 1.5 cm in diameter and 0.2 cm thick, required to form a right circular cylinder of height 10 cm and diameter 4.5 cm.

A450
B250
C350
D400


i didnt understand the way to do pl tell

Ans 1:

Ab from Marble Arch School, Mumbai
Class : Class 8
answer is 450

Ans 2:

Vivan Singh from Maharaja agrasen Vidyalayal, Ahmedabad
Class : Class 9

Ans 3:

Dhruva from Vidyanikethan, Bangalore
Class : Class 5

Ans 4:

Abhay Agarwal from Indirapuram Public School, Ghaziabad
Class : Class 8

Ans 5:

Lavanya Tyagi from DPS Pali Road , Jodhpur, Jodhpur
Class : Class 8

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