International Maths Olympiad Forum By SOF Olympiad Trainer - Page 342

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Subject :IMO    Class : Class 6

Fill in the blanks.     P      is divisible by 4 but not by 8. If a number is divisible by      Q      , it must be divisible by 4. The sum of two      R      odd numbers is always divisible by      S      .

          P         Q          R               S
A612     4     Consecutive     8
B612     8     Consecutive     4
C512     4     Consecutive     8
D512     8     Consecutive     4


Ans 1:

Class : Class 7
option b

Ans 2:

Class : Class 6
OPTION B

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
OPTION D .9 AS , 9-7=2 9-6=3

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
Ratio of shaded to UNSHADED = 4 : 12 = 1 : 3. Rajendra and Pranav here they have asked shaded to UNSHADED, NOT shaded to total.

Ans 2:

Class : Class 6
OPTION A AS 4 BLOCK ARE SHADED OUT OF 16. SO RATIO IS 4:16 WHICH IS EQUIVALENT TO 1:4

Ans 3:

Class : Class 6
1:4

Ans 4:

Class : Class 7
But it is asking the ration of shaded part to unshaded part. So, the correct answer is 1:3.

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7
*ratio

Ans 7:

Class : Class 6
1:2

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Subject :IMO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

(B):  Cost of 1 kg rice = ₹ 15
Cost of 10 kg rice = ₹ (15 × 10) = ₹ 150
Cost of 1 kg sugar = ₹ 20
Cost of 15.04 kg sugar = ₹ (20 × 15.04)
= ₹ 300.80
Cost of 1 kg salt = ₹ 9
Cost of 5.06 kg salt = ₹ (9 × 5.06) = ₹ 45.54
Total cost = ₹ (150 + 300.80 + 45.54) = ₹ 496.34
Amount of money Chinmay gave to shopkeeper
= ₹ 1000
∴ Amount of money he get back
= ₹ (1000 - 496.34) = ₹ 503.66


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Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

(C):

1 kg = 1000g
Cost of 1 kg i.e 1000g oranges = Rs 120
Cost of 250g oranges = (120 / 1000) x 250 = Rs 30
Cost of 1kg  i.e 1000g apples = Rs 150
Cost of 500g apples = (150 / 1000) x 500 = Rs 75
Cost of 250g  oranges and 500g apples altogether = 30 + 75 = Rs 105


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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 2

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 8
very very easyAdd all

Ans 2:

Class : Class 5
The answer is 86.1 litres

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Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1

(C)

She will be facing North West after turning 45° anticlockwise. After turning 135° clockwise she will be facing East. 
Finally after turning 90° clockwise she will be facing South.


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