Not enough info

Short of one condition for a unique answer

Sorry left sentences : Book storeA has 40 fewer books than book store B. Thanks.

1 unit = 130+130+40 =300 Total number of books = 3units 3 units= 300 x 3 = 900 books.

Thanks☺

Welcome. Understand why 1 unit and 3 units right?

A 2 units and B 1 units right??

Yea... And know why added 2 times of 130?

Pls explain thks.👍

Because when B gives A 130 books, Number of books own by B decreases by 130. At the same time, the number of books owned by A increases by 130. This cause the difference to be 260 instead of 130. Can you see this part?

Ok.

Answer should b 660, I think.

My answer is also 660. Anyone can advise. Thks.

I checking if is my mistake...

sorry my ans is wrong Shanthi Seetharam

No worries. Thanks All.👍

My answer is 12 too.

Why + 8?

Oh paiseh i read " 8 more women than men"...

Kenneth Chan At First : Women = 1unit, Men = 4units; After : Women = 1 unit + 12, Men = 4units - 16. Since there were 8 more men than women in the end, No. of women in the end + 8 = No. of men in the end. Therefore, (1 unit + 12) + 8 = 4 units - 16. Finally, 1 unit = 12 (i.e. no. of women at first)

Include both 30 & 60 Vanessa Boudewyn-Pereira

Between does not include the first and last number

Between, 30 and 60 not included

I think it does not include 30 n 60.

My first instinct was "between" doesn't include the first and last as well

Its fr 31 to 59 :)

And i fail!

Unless it says inclusive of 30 and 60, "between" means after 30 and before 60.

Vanessa Boudewyn-Pereira doesn't incl.

Between mean does not involve.

OK thanks everyone, confirming my Original thoughts

31-59

30 and 60 is not included

is it English test or Maths test?

This is simple English

-"between" does not include 30 & 60 -if "from", both 30 & 60 are included

31-59

Math test making sure your English is good too 😛

From 31 to 59

I got different answer

My mistake Mayuree Thongpan, number of units for A should be 10.... Thanks for working it out...

Many Thanks

Hi Vei Li in your solution where should i change A to 10?

Here's the corrected solution, Choon Hock...

Thanks Vei Li

Since total length of C+D is 10.8 cm longer than A+B, therefore we can also take total units for (C+D) - (A+B)= 48 - 42 = 6

Got it. Thanks

Vei Li Soo can explain to me why 10 instead of 8 please.

Because A is 1/8 of the total length of B+C+D, so since total units of those three poles are 80 units, A = 1/8*80=10 units.