International Maths Olympiad Forum By SOF Olympiad Trainer - Page 579

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 10
d should be the answer

Ans 2:

Class : Class 9
If it is taken in the first month then it should be July..........................I think...................

Ans 3:

Class : Class 6
It is d because it is wrong in solution

Ans 4:

Class : Class 6
answer should be D

Ans 5:

Class : Class 6
if you say that even may can be the answer

Ans 6:

Class : Class 10
If anyone says July is the answer than you have told the wrong answer ,the answer is June

Ans 7:

Class : Class 7
C

Ans 8:

Class : Class 8
The answer is D.

Ans 9:

Class : Class 8
C is the answer I am sure!

Ans 10:

Class : Class 5

Ans 11:

Class : Class 5
D is the answer as increase in height in April is 10 cm.,May is 12 cm., June is 11 cm., and July is 13 cm. So, the most increase in height took place in July.

Ans 12:

Class : Class 6
oh my god. you have posted the easiest question in science olympiad foundation for grade 5 . the ans is july

Ans 13:

Class : Class 5
D is the answer as increase in height in April is 10 cm.,May is 12 cm., June is 11 cm., and July is 13 cm. So, the most increase in height took place in July.

Ans 14:

Class : Class 4
well the increase in height took place BETWEEN june and july so pls do explain which one shall i take

Ans 15:

Class : Class 7

Ans 16:

Class : Class 8
yes, answer is C as the height was increased in June, not in July. The measure was taken on June 1st as mentioned. When you will read the question carefully, It will become really simple.Its not arduous at all.

Ans 17:

Class : Class 6
c is the answer

Ans 18:

Class : Class 5
What happened to July?

Ans 19:

Class : Class 6
It is actually c because u should not count the cm in the month but in the before months increasing

Ans 20:

Class : Class 6
oh my god. you have posted the easiest question in science olympiad foundation for grade 5 . the ans is july

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 8
it should be b

Ans 2:

Class : Class 5
it is c)

Ans 3:

Class : Class 9
Reflex on board

Ans 4:

Class : Class 5
c reflex angle

Ans 5:

Class : Class 7
Yes, same here. Answer is option C

Ans 6:

Class : Class 6
how is it c tho??? its obtuse... right?

Ans 7:

Class : Class 5
I want to go with answer c) Reflex Angle

Ans 8:

Class : Class 6

Ans 9:

Class : Class 5
How Reflex angle??? it is a right angle.

Ans 10:

Class : Class 5
I know you have this question from book of mtg imo class 5 chapter angles and question no. 10

Ans 11:

Class : Class 10
It should be Option C) because Obtuse Angle is always less than 180 but more than 90 and X shown in the figure is greater than 180 degree so it should be Reflex Angle

Ans 12:

Class : Class 8
For me it is (C)

Ans 13:

Class : Class 5

Ans 14:

Class : Class 5
reflex angle as it has 20 more degrees added to 180 degrees

Ans 15:

Class : Class 4

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
(a) 3 hours 45 min 15 seconds

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
And is option C

Ans 2:

Class : Class 9
C

Ans 3:

Class : Class 8
And is option C

Ans 4:

Class : Class 9
LET THE NUMBER BE X AND Y X-Y=1 X=Y+1 GIVEN X+Y=25 EQUATE X AS Y+1 Y+1+Y=25 2Y+1=25 2Y=24 Y=12 X=25-Y=13 ANSWER IS C-12,13

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
Be sure that you are clear and tell me the version of your computer as a question in general subject right now. also you can send it as an answer in this post

Ans 2:

Class : Class 8
B

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
the answer is correct....your calculations might be wrong

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9
TOTAL AREA OF FIGURE= 1/2 PI R^2= 1/2*14*14*22/7=308CM^2 AREA OF WHITE ARE= PI R^2 22/7*7*7=154 cm^2 THEREFORE RE O SHADED REGION= 308-154=154 CM^2 OPTION C IS CORRECT

Ans 4:

Class : Class 10

Ans 5:

Class : Class 7
the answer is wrong

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