ML and R started on a 36-km cycling trip at the same time. They cycled at the same speed for the first 12 km. For the remaining 24km, ML cycled at a faster speed. She arrived at the finishing point 10 minutes before Raja who was 4km behind her. Raja did not change his speed throughout the trip and he completed the trip at 11 10.

(a)\tAt what time did the trip start?
(b)\tWhat was ML’s average speed for the remaining 24km of the trip in m/min?

12 women take 6 mins to peel 24 potatoes. How long would it take 18 women to peel 30 potatoes?

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Hi,

can there be some explanations accompanying the solution? I've got solution but can't seem to understand the rationale behind it. tks in advance. :scratchhead:

Mrs Lee had 120 more walnut muffins than almond muffins in her shop. 2/3 of the walnut muffins and 20% of almond muffins are equal to 145.how many almond muffins were there in her shop?

oops, titles as follows. PM me to email pic as too large cant post here.


小学3 &4 年级 - 看图作文.命题作文,口试 – 裴蕾编- 海洋出版公司 – Ocean Publications $5
小学3 &4 年级 - 看图作文.命题作文,口试 – 裴蕾编- 海洋出版公司 – Ocean Publications $5
小学1 &2 年级 - 看图作文.命题作文,口试 – 裴蕾编- 海洋出版公司 – Ocean Publications $5

Hi,

my daughter in Upp Pri, not using these bks anymore. I am selling them at $5 a copy. If buying all, price neg. These bks can be used for Pri1-3 for MT esp compo. Interested can PM me.

Hi,


my daughter in Upp Pri, not using these bks anymore. I am selling them at $5 a copy. If buying all, price neg. These bks can be used for Pri1-3 for MT esp compo. Interested can PM me.

can help to solve this qn without using Algebra? Thank you.


There were 146 pupils who participated in a Math Trial Challenge. In the end, 2/3 of the boys and 3/4 of the girls managed to complete all the stations. 40 pupils could not complete all the stations. How many boys participated in the Math Trial Challenge?

Appreciate help on this:


Henry’s weekly allowance is $7 more than Ian’s. They saved the same amt. of money every week and spent the rest. When Henry spent $28 more than Ian, the ratio of the amt that he spent to the amount that Ian spent was 3:2. If Henry’s weekly allowance is $30, how much does he save each week?

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1)A locksmith had a total of 272 gold and silver uncut keys in the ratio 12:5. After cutting twice as many gold as silver keys, the ratio of the number of gold keys to the number of silver keys became 5:2. How many gold keys did the locksmith cut?


2) After saving for a month, 2/3 of S’s savings was the same as 1/2 of M’s savings. S then spent $330 and M saved an additional $430. In the end,the ratio of S’s savings to M’s savings became 2:3. How much did they save altogether in the end? tks