Q&A - P5 Math

[papilion]

Can someone please help to solve the question posted by @zombie ?

[verykiasumummy]

i can try to help :


12% –> 48
1% –> 4
100% –> 400 (no of women at first)

5u –> 400
1u –> 80
2u –> 160 (no of men at first)

400 + 160 = 560 (total people at first)
120/100 x 560 = 672 (total people in the end)
672 - 560 = 112 (addn people)
112 - 48 = 64 (men added)
160 + 64 = 224 (men in the end)
224/672 x 100% = 33 1/3%

hope it helps…

[verykiasumummy]

btw, u should post ur question in the correct thread for prompt answers by the other experts here…

[Udon]

Hi hi… please to check is my calculation is correct?

Thanks for your help in advance…

Q1. All the water from the bottle is poured into a square-based container without spilling. The height of the container is 9 cm. What is the length of the container?

576 / 9 = 64cm ?

[verykiasumummy]

Udon:

Hi hi.. please to check is my calculation is correct?

Thanks for your help in advance...

Q1. All the water from the bottle is poured into a square-based container without spilling. The height of the container is 9 cm. What is the length of the container?

576 / 9 = 64cm ?

u should have 1 last step.

576 / 9 = 64cm2 (base area)

square root of 64 = 8cm (length of container)

ans : 8cm.

[Udon]

verykiasumummy:

Udon:

Hi hi.. please to check is my calculation is correct?

Thanks for your help in advance...

Q1. All the water from the bottle is poured into a square-based container without spilling. The height of the container is 9 cm. What is the length of the container?

576 / 9 = 64cm ?

u should have 1 last step.

576 / 9 = 64cm2 (base area)

square root of 64 = 8cm (length of container)

ans : 8cm.

oh....thanks

[verykiasumummy]

Udon:

verykiasumummy:

[quote=\"Udon\"]Hi hi.. please to check is my calculation is correct?

Thanks for your help in advance...

Q1. All the water from the bottle is poured into a square-based container without spilling. The height of the container is 9 cm. What is the length of the container?

576 / 9 = 64cm ?

u should have 1 last step.

576 / 9 = 64cm2 (base area)

square root of 64 = 8cm (length of container)

ans : 8cm.

oh....thanks[/quote]most welcomed...

[verykiasumummy]

Udon:

verykiasumummy:

[quote=\"Udon\"]Hi hi.. please to check is my calculation is correct?

Thanks for your help in advance...

Q1. All the water from the bottle is poured into a square-based container without spilling. The height of the container is 9 cm. What is the length of the container?

576 / 9 = 64cm ?

u should have 1 last step.

576 / 9 = 64cm2 (base area)

square root of 64 = 8cm (length of container)

ans : 8cm.

oh....thanks[/quote]most welcomed...

[Udon]

Need help…thanks


Q1. Ben and Carl shared some 20 cents-coins in the ratio of 2 : 3. Carl then saved 2/3 of his money and was left with $2.
How much money did both of them have at first？

[verykiasumummy]

Udon:

Need help...thanks


Q1. Ben and Carl shared some 20 cents-coins in the ratio of 2 : 3. Carl then saved 2/3 of his money and was left with $2.
How much money did both of them have at first？

for carl :
1 - 2/3 = 1/3 (left after savings)
1/3 --> $2 (10 coins of 20c)
3/3 --> 30 coins

if carl has 30 coins, ben should have 20 coins.

30 + 20 = 50
50 x 20c = $10

ans : $10