International Maths Olympiad Forum By SOF Olympiad Trainer

Rs from DPS, Delhi

Subject :IMO Class : Class 4

Mrs. Beena had 4 kg of flour. She used 3 kg 60 g flour to bake some cakes. How much flour had she left?
(a) 930 g
(b) 940 g
(c) 40 g
(d) 960 g

Very easy

Ans 1:

Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI

Class : Class 4

Master answer

Ans 2:

Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI

Class : Class 4

Quantity of flour Beena had =4 kg = 4000 g. Quantity of flour used to bake cake = 3 kg 60 g = 3060 gQuantity of flour left with Beena = 4000 -3060 = 940 gHence the correct answer is Option B

Ans 3: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is B.

Quantity of flour Beena had = 4 kg = 4000 g
Quantity of flour used to bake cake = 3 kg 60 g = 3060 g
Quantity of flour left with Beena = 4000 – 3060 = 940 g
Hence, the right answer is Option B.

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Hritvi from Podar International School, Mumbai

Subject :IMO Class : Class 6

Amulya and Amar visited two places A and B respectively in Kashmir and recorded the minimum temperatures on a particular day as - 4°C at A and - 1°C at B. Which of the following statements is true?

A A is cooler than B.
B B is cooler than A.
C There is a difference of 2°C in the temperature.
D The temperature at A is 4°C higher than that at B.

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Ans 1:

Agastya Tripathi from dps gurgaon, Gurgaon

Class : Class 4

Ans 2:

Daksh from Greenwood High, Bengaluru

Class : Class 7

A is cooler than B

Ans 3:

Hritvi from Podar International School, Mumbai

Class : Class 7

since, (-4) lies left to (-1) on a number line.so, -4< -1.: A is cooler than B

Ans 4:

Preeti tanwar from DON BOSCO ACADEMY, Patna

Class : Class 9

a

Ans 5:

Aadvik saini from Mvn sector 17, Faridabad

Class : Class 8

a

Ans 6:

HIMANEESH SINGH from BLOOM PUBLIC SCHOOL, NEW DELHI

Class : Class 6

Option a. A is cooler than B because if you draw a number line,-4 is less than -1. When we go to the left it is decreasing and when it goes to right, it is ascending. Regards, class 6 boy Can't tell my name.

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Hritvi from Podar International School, Mumbai

Subject :IMO Class : Class 6

If a and b are two whole numbers, then commutative law is applicable on subtraction if and only if _____.

A a = b
B a ≠ b
C a > b
D a < b

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Ans 1:

Pranit Sinha from Montfort School, Roorkee, Haridwar

Class : Class 6

If we take a as 4 and b as 2, then according to communicative property, 4-2=2 but 2-4=-2 so 2 and -2 are not equal but, if we take a as 4 and b as 4, then it will be 4-4=0 and 4-4=0. Thus, a should be = b

Ans 2:

SAMRUDHI from Sai International School, Bhubaneswar

Class : Class 6

C

Ans 3:

Preeti tanwar from DON BOSCO ACADEMY, Patna

Class : Class 9

c

Ans 4:

Kshitij rahatgaonkar from atomic energy central school no 4, Mumbai

Class : Class 6

EASY

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Nivin from Euro school, BANGALORE

Subject :IMO Class : Class 6

The number 144 can be represented by 12 × 12 square grid. Which of the following can also be represented on a square grid?

A 39
B 50
C 70
D 81

81 is the ans as 9 into 9 is=81

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Ans 1:

Manvi Mundepi from Montfort School Roorkee, Roorkee

Class : Class 9

THE ANSWER SHOULD BE 81 BECAUSE,SQUARE OF 9=9*9[NINE MULTIPLY BY NINE] HENCE THE ANSWER IS EIGHTY ONE.

Ans 2:

anya singhal from greenwoohigh international , bangalore

Class : Class 5

Ans 3:

KARTIK SHINDE from Delhi Public school Rau Indore , indore

Class : Class 4

Ans 4:

anya singhal from greenwoohigh international , bangalore

Class : Class 5

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jj from DELHI PUBLIC SCHOOL, HYDERABAD

Subject :IMO Class : Class 3

Which of the following statements is CORRECT about the given figure?

A Whole is divided into eight equal parts.
B Shaded fraction =
C Unshaded fraction =
D All of these