International Maths Olympiad Forum By SOF Olympiad Trainer - Page 385

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Subject :IMO    Class : Class 6

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Class : Class 6
how?

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 10

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 5

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Class : Class 5
answer is option C

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Subject :IMO    Class : Class 6

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Class : Class 6
erroror2ikopdfireso hggggr

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
Let the number of coins of ₹ 1 = 5xNumber of coins of 50 paise = 6xAnd number of coins of 25 paise = 8xAccording to question,5x × 100 6x × 50 8x × 25 = 420 × 100⇒ 500x 300x 200x = 4200⇒ 1000x = 42000 ⇒ x = 42∴ Number of coins of ₹ 1 = 5 × 42 = 210Number of coins of 50 paise = 6 × 42 = 252Number of coins of 25 paise = 8 × 42 = 336∴ Total number of coins= 210 252 336 = 798

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Class : Class 9

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Class : Class 7

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Class : Class 9
SOLUTION HAS A MISTAKE.420x100= 42000 not 4200.

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Class : Class 8

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Subject :IMO    Class : Class 2

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Subject :IMO    Class : Class 2

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Subject :IMO    Class : Class 2

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