International Maths Olympiad Forum By SOF Olympiad Trainer - Page 378
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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :IMO    Class : Class 7

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Nipun Abhilash from National Public School, Banashankhari, Bangalore
Subject :IMO    Class : Class 8

Ans 1:

Vineet Agarwal from DPS, Gurgaon
Class : Class 5
The answer should be d but the option is written wrong it should be 90-v not 90 v so i hope you get it

Ans 2:

Aditi Saha from Bishops KalyaniNagar, Pune
Class : Class 4
agree

Ans 3:

Nikasha Parashar from Sanskriti, New Delhi
Class : Class 8

Ans 4:

Vibha from NPS , Singapore
Class : Class 5

Ans 5:

Vibha from NPS , Singapore
Class : Class 5

Ans 6:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8
90 - v not 90v

Ans 7:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
There is a small error here

Ans 8:

Arya Sur from Calcutta Boy's School, Kolkata
Class : Class 7
90-v, slight printing error

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Tejashree Colvalcar from Sharda Mandir School, PANAJI GOA
Subject :IMO    Class : Class 8

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Prathamesh Raje from DPS Electronic City, Bangalore
Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Let Cost price be ‘x’.
Selling price = x – 15% of x = 85x /100
85x /100 = 1275
So, x(cost price) = 127500/85 = Rs. 1,500
So, new selling price = 1500 + 10% of 1500
= 1500 + 150 = Rs. 1650
Answer-(D) Rs 1650


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Ashwak from Cambridge, Jalandhar
Subject :IMO    Class : Class 6

Ans 1:

Yashraj from pps, pune
Class : Class 6
they are cheaters.i did c and they said i did b

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): It is given that,
Area of rectangle = Area of square
⇒ l × b = side × side
Also, length of rectangle = perimeter of square


Ans 3:

Vedant Afre from City Pride School, Pune
Class : Class 10

Ans 4:

Pranya Gupta from Delhi Public School Ghaziabad Vasundhara, Ghaziabad
Class : Class 6

Ans 5:

Punya Paras Sundrani from Anand Niketan , Ahmedabad
Class : Class 7
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Swarit from Indian School Wadi kabir, Muscat
Subject :IMO    Class : Class 5

Ans 1:

ARADHYA AGARWAL from NEW ERA PROGRESSIVE SCHOOL, Korba
Class : Class 8
Why no solution ??

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D): The pattern followed is


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Shaarav Dutt from Delhi Public School, NOIDA
Subject :IMO    Class : Class 2

Ans 1:

Gaurika Bhasin from Genesis global school, Noida
Class : Class 2
1 : 2 x 10 17 x 10 20 x 1 = 2102 : 12 x 10 7 x 10 5 x 1 = 1953 : 7 x 10 20 x 10 20 x 1 = 2903 > 1 > 2Close1 : 2 x 10 17 x 10 20 x 1 = 2102 : 12 x 10 7 x 10 5 x 1 = 1953 : 7 x 10 20 x 10 20 x 1 = 2903 > 1 > 2Close1 : 2 x 10 17 x 10 20 x 1 = 2102 : 12 x 10 7 x 10 5 x 1 = 1953 : 7 x 10 20 x 10 20 x 1 = 2903 > 1 > 2Close1 : 2 x 10 17 x 10 20 x 1 = 2102 : 12 x 10 7 x 10 5 x 1 = 1953 : 7 x 10 20 x 10 20 x 1 = 2903 > 1 > 2Close

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): 1 : 20 + 170 + 20 = 210
2 : 120 + 70 + 5  = 195
3 : 70 + 200 + 20  = 290
As, 290>210>195

So, 3 > 1 > 2


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P A Reyyansh from Ann Mary School, Dehradun
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D): Second multiple of 12 = 12 x 2 = 24
Third multiple of 8 = 8 x 3 = 24
Multiplying the second multiple of 12 by the third multiple of 8 = 24 x 24 = 576
 


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aarav khandelwal from BAL BHARTI PUBLIC SCHOOL, NEW DELHI
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D):  A) XV - Fifteen
        B) XIX - Nineteen
       C) XXVI - Twenty six
       D) IXIV is meaningless.


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mystic bro7pro from arbor school, Hyderabad
Subject :IMO    Class : Class 6

Ans 1:

Sejal Mittal from dlf, ghaziabad
Class : Class 6

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): 


So, Latika will be facing McD.


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