Mayank Gupta
from
Kulachi Hansraj Model School, New Delhi

Subject :IMO Class : Class 7

How many of the following letters have rotational symmetry of order more than 1?
**R, B, F, H, O, P, S, W, X, Z, N**

A 4

B 9

C 5

D 8

## Ans 3:

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## Ans 4:

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Anusha
from
LBS School , Kota

Class : Class 10

I think the thickness of the lines of X makes the answer 5

## Ans 5:

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SAMBRAM BILAGI
from
National Center for Excellence, Bangalore

Class : Class 8

Yes, I too agree with Ahamad.

## Ans 6:

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santosh katiyar
from
narayana vidhyalayam, Nagpur

Class : Class 7

h,o,x,s,n i think it is the answer

## Ans 7:

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Himanish Basu
from
Army Public School Kamaraj Road, Bangalore

Class : Class 7

It is 7 becoz B has rotational symmetry of order2.

## Ans 8:

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santosh katiyar
from
narayana vidhyalayam, Nagpur

Class : Class 7

please explain the answer in details

## Ans 9:

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Arnav Raj Sharma
from
GEMS International School the ultra master mega, Gurgaon

Class : Class 7

I agree with Ahmad.

## Ans 10:

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Ishaan S
from
Clarence Public School, Bangalore

Class : Class 7

I agree, it should be 6 - H, O, S, X, Z and N

## Ans 11:

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Janvi Barman
from
St MarysGirls, Pune, Pune

Class : Class 8

The answer is six - H, O, S, X, Z and N.

## Ans 12:

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Snigdha swaminath
from
Christ nagar higher secondary school , Trivandrum

Class : Class 7

IT IS 6 RIGHT?

## Ans 13:

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Nishchay Gupta
from
Cambridge Court World School, Jaipur

Class : Class 6

Yes there are 6 letters I also agree with Ahmad

## Ans 15:

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## Ans 16:

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Joshua Sen
from
Montfort Senior Secondary School, Roorkee

Class : Class 8

HOSXZNcan u give more option

## Ans 17:

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Ahmad
from
Sai International School, Gadhinglaj

Class : Class 7

There is a mistake.Actually there are 6 lettersThose are-H, O, S, X, Z, N

## Ans 20:

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N L Satam
from
sardar vallabhai patel vidyala, BHYANDER

Class : Class 8

how it can be a 6 I think so, there is only 5 H,O,X,S and Z

## Ans 21:

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## Ans 22:

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## Ans 23:

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Akshara
from
NPS, Bengaluru

Class : Class 8

I agree . There are 6 letters with a rotational line of symmetry