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Anitha Natarajan

Asked 9 years ago

SG Primary 5 Number and Algebra

Replies 3

Xavier Sng

If there wasn't a promotion, a 100% increase in tickets sold should be accompanied by a 100% increase in sales. In the question, sales increased only by 50%. Cost of promotional ticket was thus 150/200 × $9 = $6.75

6 years ago

Anitha Natarajan

Thanks for the detailed explanation.

6 years ago

Xavier Sng

You are most welcome. Just sharing what I know. Thank you for the question.

6 years ago

Anitha Natarajan

Asked 9 years ago

SG Primary 5 Number and Algebra

Please Help me ....

Replies 0

Serene Koon

Asked 9 years ago

SG Primary 6 Number and Algebra

Pls help ,P6 math . TIA!

Replies 4

Serene Koon

53.60+2.40=56 56÷2=28(pens) 28-2.40=25.60 (pencils) 25.60÷2=12.80 28-12.80=15.20 15.20÷0.95=16 ans?

6 years ago

Xavier Sng

Well done Serene.

6 years ago

Serene Koon

Thanks

6 years ago

Xavier Sng

Don't thank me :) you did all the heavy lifting!

6 years ago

Biyi Lee

Asked 9 years ago

SG Primary 5 Number and Algebra

Need help with working method pls. TIA

Replies 3

Xavier Sng

Since 6 + 7 = 13 children are needed to increase the number of children in each group from 7 to 8, there must be 13 groups. Total number of children = 13 × 7 + 6 = 97 OR = 13 × 8 - 7 = 97 Number of children in the smaller class = (97 - 5)/2 = 46

6 years ago

Biyi Lee

Tks much

6 years ago

Xavier Sng

You are most welcome. Regards

6 years ago

Gek Poh

Asked 9 years ago

SG Primary 6 Fractions

Dear all, can I seek help on this pl.. I change to Lcm of 28...then how to proceed such as it is 1/2 as many cheese as walnut ....??

Replies 8

Xavier Sng

Since there were twice as many walnut muffins left as cheese muffins, using the lowest common multiple of 4 and 7 does not help solve the question. Cheese muffins Before 4 units After 3 units Walnut muffins After 6 units (twice of 3 units) Before 21 units (7/2 × 6 units) 21 - 4 = 17 units -> 68 muffins 1 unit -> 4 muffins 21 + 4 = 25 units -> 100 muffins

6 years ago