Pahelp naman po sa math. Thank You!

1. of the 40 colunteers cleaning the river, 40% are children. how many are children?
A. 16
B. 17
C. 18
D. 19

2. we have 24 trees in our orchard, 25% of which are mango trees. how many mango trees are their?
A. 2
B. 4
C. 6
D. 8

3. 4% of 25 is what number?
A. 0.1
B. 1
C. 10
D. 100

4. In 320, how much is 80% of it?
A. 2560
B. 256
C. 2.56
D. 25.6

5. a group of 12 doctors 25% volunteer doctors went to the barrio to give free treatment to the residents. How many volunteers are there?
A. 24
B. 48
C. 72
D. 96

6. php200 increased by 15% is how much?
A.php30
B.php215
C. php230
D. php185

7. A nuber which is 1/6 less than 154 is how much?
A. 128.111
B. 128.222
C. 128.333
D. 128.444

8. in a group of 12 pupils, 3 are boys. what percent of the boys are group?
A. 5%
B. 10%
C. 15%
D. 25%

9. i want to buy a book cost php120. the store owner gives me 40% discount, how much should i pay?
A. php160
B. php60
C. php48
D. php72

10. an umbrella was sold for php160 minus 20% from the original price. what was the original price of the umbrella?
A. php200
B. php300
C. php400
D. php500