Choose the correct answer from the alternatives given :
Ann, Bill and Ken shared some stamps in the ratio 2 : 3 : 4. After a game the ratio became 5 : 2 : 2. If Ann won 21 stamps how many did Ken lose?

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Solution

The correct option is D 14
$L e t n u m b e r o f t i c k e t s o f A n n = 2 x$
$B i l l = 3 x$
$K e n = 4 x$
$R a t i o o f t i c k e t a f t e r a g a m e :$
$A n n = 5 x$
$B i l l = 2 x$
$K e n = 2 x$
$T i c k e t s w o n b y A n n = 5 x - 2 x = 3 x$
$T i c k e t s l o s s b y B i l l = 2 x - 3 x = - 1 x$
$T i c k e t s l o s s b y K e n = 2 x - 4 x = - 2 x$
$N u m b e r of ticket won by Ann =21$
$which is 7 times the ratio$
$Similarly number of tickets loss by Kenn=-2 \times 7=14$

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Choose the correct answer from the alternatives given :Ann, Bill and Ken shared some stamps in the ratio 2 : 3 : 4. After a game the ratio became 5 : 2 : 2. If Ann won 21 stamps how many did Ken lose?

Choose the correct answer from the alternatives given :
Ann, Bill and Ken shared some stamps in the ratio 2 : 3 : 4. After a game the ratio became 5 : 2 : 2. If Ann won 21 stamps how many did Ken lose?