International Maths Olympiad Forum By SOF Olympiad Trainer

nikita dhingra from Delhi public school, Chandigarh, Chandigarh

Subject :IMO Class : Class 9

Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

A2 : 3 : 4
B6 : 7 : 8
C6 : 8 : 9
DNone of these

View All Answers (0)

Submit Your Answers

Post Your Answer

monica jindal from British Co Ed high school, Patiala

Subject :IMO Class : Class 3

Which of the following letters are embedded in the Fig. (X)?

AL, W
BL, X
CO, N
DX, M

Sof

View All Answers (2)

Ans 1:

Bhargavi Vaibhav Zade from R. S. MUNDLE ENGLISH SCHOOL, NAGPUR

Class : Class 7

Ans 2:

monica jindal from British Co Ed high school, Patiala

Class : Class 7

So

Submit Your Answers

Post Your Answer

Lakshyraj yadav from The shri ram aravali school , Gurgaon

Subject :IMO Class : Class 5

Bobby prepare a cake for 4 hours 35 minutes. She prepare soup for 1 hour 20 minutes. How long Bobby takes to prepare the cake than the soup?

A3 hours 15 minutes
B3 hours 25 minutes
C5 hours 15 minutes
D5 hours 55 minutes

View All Answers (1)

Ans 1:

Wrik Chatterjee from DELHI PUBLIC SCHOOL NOIDA, Noida

Class : Class 5

a

Submit Your Answers

Post Your Answer

Devesh Kumar Shrivastava from Ramjas School, Pusa Road, New Delhi

Subject :IMO Class : Class 5

80 has ____ factors.

A10
B6
C8
D12

1,2,4,5,8,10,1,6,20,40,80 Total 10 factors

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

(A): The factors of 1,2,4,5,8,10,16,20,40,80

Therefore, 80 has 10 factors.

Submit Your Answers

Post Your Answer

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi

Subject :IMO Class : Class 6

Ashima bought 23 things from the market. She bought five more jeans than shirts and two fewer watches than jeans. If x represents the number of shirts in total, then which sentence can be used to find how many of each thing are bought?

A x + (x + 5) + (x + 3) = 23
B x + (x - 5) + (x - 3) = 23
C (x + 5) + (x + 3) = 23
D x + (x + 3) = 23

View All Answers (4)

Ans 1:

Prapti Kumar from GD Birla Center For Education, Kolkata

Class : Class 9

Ans 2:

Ojaswi from SAINT JOHNS CONVENT SCHOOL LANSDOWNE, DELHI

Class : Class 6

Ans 3: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

(A): Number of shirts bought by Ashima = x
∴ Number of jeans bought by her = x + 5
∴ Number of watches bought by her
= (x + 5) – 2 = x + 3
∴ Total number of things bought by her
= x + (x + 5) + (x + 3) = 23

Ans 4:

Prachi from Holy Child Public school, Faridabad

Class : Class 10

Submit Your Answers

Post Your Answer

Kunsh Makani from NES, Mumbai

Subject :IMO Class : Class 1

How many of the following objects will roll but not slide?

A1
B4
C3
D0

how is answer zero. ?

View All Answers (4)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

(D):

There is no object which can roll but not slide.

Ans 2:

Anugya from Delhi Public School Whitefield, Bangalore

Class : Class 5

Ans 3:

Saiansh Biswas from Little Flower School, Jamshedpur

Class : Class 4

A cylinder can roll....who can answer is zero

Ans 4:

Samarth Shenoy from Jindal Vidya Mandir , Bellary

Class : Class 5

Submit Your Answers

Post Your Answer

Arihant kumar from Delhi public school,EOK, New Delhi

Subject :IMO Class : Class 6

Fill in the blanks:
(i) Data means information in the form of _P __.
(ii) Data obtained in the _Q __form is called row data.
(iii) The number of times a particular observation occurs is called its _R __.
(iv) Arranging the numeral figures in an ascending or descending order is called an/a _S __.

	P	Q	R	S
A	Numerical figure	Frequency	Original	Array
B	Numerical figure	Original	Frequency	Array
C	Array	Frequency	Original	Numerical figure
D	Frequency	Array	Original	Numerical figure

View All Answers (4)

Ans 1:

mystic bro7pro from arbor school, Hyderabad

Class : Class 5

a

Ans 2:

Utkarsh Priyam from DSE, hyderabad

Class : Class 9

The use of word 'row' in place of 'raw' is confusing. Data in original form is called 'raw' data.

Ans 3:

SOUVAGYA SAHA from De Nobili School, DHANBAD

Class : Class 10

Ans 4: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is option B.

Submit Your Answers

Post Your Answer

Devesh Kumar Shrivastava from Ramjas School, Pusa Road, New Delhi

Subject :IMO Class : Class 5

How many triangles are formed in the given figure?

A23
B24
C25
DNone of these

View All Answers (4)

Ans 1:

NAMAN SINGH from SETH ANANDRAM JAIPURIA SCHOOL, Ghaziabad

Class : Class 8

Ans 2:

Seerat Kaur Sowanni from Deens Academy, Bangalore

Class : Class 6

yeah, it is 23

Ans 3:

Ojas Garg from Fr. Agnel School Noida, Noida

Class : Class 5

yes

Ans 4: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

(A):

Triangles formed are : A, B, C, D, E, F, G,
H, I, J, K, BC, EF, BH, FJ, HI, IJ, HIJ, FJK,
BHG, DCEI, ABCDEF, XYZ
Number of triangles formed = 23.

Submit Your Answers

Post Your Answer

Diti Sharma from Amity International School, Noida

Subject :IMO Class : Class 9

In ΔDEF and ΔPQR, DE = DF, ∠F = ∠P and ∠E = ∠Q. The two triangles are

A Isosceles but not necessarily congruent
B Isosceles and congruent
C Congruent but not isosceles
D Neither congruent nor isosceles