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Sayak Mallik from Techno India Group Public School,Hooghly, Chinsurah
Subject :Sam    Class : Sample

Two carpenters decided to design desks for students at the Junior High School. The dimensions of the desk are as shown. How much wood (in cm2) would they need for 30 desks?



A2700 cm2
B80000 cm2
C21000 cm2
D81000 cm2


Ans 1:

rehan from Chanakya academy, bhuj
Class : Class 3
How this answer came

Ans 2:

Shubham Kochar from Birla high school , Kolkata
Class : Class 7
But why multiply 30 again

Ans 3:

Rohan from jubilee hills public school, hyderabad
Class : Class 9
we should multiple 30 since there are 30 desks

Ans 4:

Sattaki Basu from Don Bosco School, liluah, Kolkata
Class : Class 9
area of trapezium =1/2*(sum of parallel sides)*height;=1/2(70 110)*30=2700; amt of wood reqd.=2700*30=81000

Ans 5:

AKASH from KESAV SARASWATI VIDYA MANDIR, PATNA
Class : Class 9
GIVE ME SOLUTION OF THIS

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