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from ,
Subject :IMO    Class : Class 7
4:5

Ans 1:

from ,
Class :
Let, 3rd no. = x, Let, 2nd no.= 20/100 (also N1), Let, 1st no. = 50/100 (also N2), Then, Ratio of 1st to 2nd no. = (50/100)/(20/100) =1/2(i.e. 50/100)*5(i.e. 1/{20/100}=100/20} OR Ratio of 2nd no. to 1st no. =Vice versa of (N1:N2)= 2:5

Ans 2:

Harshita Kumari from St. Joseph's Convent High School, Patna
Class : Class 7
Let the no. Be x 5(4+x)-20/8=10 20+5x-20/8=10 5x/8=10 5x=10×8 5x=80 X=80/5 X=16 According to me.

Ans 3:

from ,
Class :
Equation: ((5(4+n))- 20)/8= 10 = (5(4+n))- 20= 10x8 = 5(4+n)= (10x8)+ 20 =4+n= (10x8+20)/5 =n= ((10x8+20)/5)- 4 =n= (100/5)- 4 =n= 20- 4 n=16

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from ,
Subject :IMO    Class : Class 7
30

Ans 1:

from ,
Class :
30 trees

Ans 2:

from ,
Class :
630/21= 30 There would be 30 trees in one row.

Ans 3:

Harshita Kumari from St. Joseph's Convent High School, Patna
Class : Class 7
Let the required no. Be x 21x=630. ,. X=630÷21 ,X=30

Ans 4:

from ,
Class :
30

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MEENAKSHI SINGH from Raghav Global School, Noida, Noida
Subject :IMO    Class : Class 5

Ans 1:

Atulya tripathy from Delhi Public School, sector 45, Gurgaon
Class : Class 10
100 CRORES

Ans 2:

Soundharya from ISWK, Muscat
Class : Class 8
100 crores

Ans 3:

from ,
Class :
100 crores

Ans 4:

from ,
Class :
100

Ans 5:

Aaditya Biju from Indian Learners Own Academy, Kuwait
Class : Class 6
100 crores

Ans 6:

from ,
Class :
100 crores

Ans 7:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
100 crores

Ans 8:

praveen prabhu from private international english school, abudhabi
Class : Class 5
100 crores

Ans 9:

from ,
Class :
100 crores

Ans 10:

from ,
Class :
100

Ans 11:

from ,
Class :
100 crores

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from ,
Subject :IMO    Class : Class 6
16

Ans 1:

Aarya M Shah from Navrachana Vidyani Vidyalaya, Vadodara
Class : Class 4
4:5

Ans 2:

Aakash from Dpsrohini, New Delhi
Class : Class 6
16

Ans 3:

Aarya M Shah from Navrachana Vidyani Vidyalaya, Vadodara
Class : Class 4
Biggest : 7,430 Smallest: 3,047

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