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 By: achieve_goal (offline)  Sunday, October 16 2011 @ 07:59 AM CDT (Read 970 times)
achieve_goal

In a class, 2/5 of the pupils liked golf and 7/9 of the remaining

pupils liked tennis. The rest of the pupils liked soccer. If there

were 12 more pupils liked golf than soccer, how

many pupils were there in the class altogether?

Regular Member

Registered: 09/14/11
Posts: 102

 By: myluckystar111 (offline)  Sunday, October 16 2011 @ 09:25 AM CDT
myluckystar111

Hi,

2/5 of pupils liked golf, and 7/9 of remaining pupils like tennis

LCM of 5 and 9 = 45

So whole class = 45 units
2/5 = 18 units like golf

7/9 = 21 units like tennis
Pupils who liked soccer = 45 - (18+21) = 6 Units

Pupils who liked golf more than soccer = (18-6) units = 12 units

12 units = 12
1 unit = 1

45 units = 45
No.of pupils in the class altogether = 45 (ANS.)

Hope this helps.

Junior

Registered: 09/05/11
Posts: 15

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