This blog is managed by Song Hock Chye, author of Improve Your Thinking Skills in Maths (P1-P3 series), which is published and distributed by EPH.

Wednesday, December 26, 2007

Nan Hua Primary School PSLE Math Prelim 2006 (Q39)

School P has 180 more pupils than School Q. If 60 pupils are transferred from School Q to School P, there will be 4 times as many pupils in School P as School Q. How many pupils are there in School P?

Solution




3 units ----- 60 + 180 + 60 = 300

1 unit ----- 300 divided by 3 = 100

School P ----- 4 units – 60
= (4 x 100) – 60
= 340

Answer: There are 340 pupils in School P.

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