Question

I have few questions i need help on 1. A student scored 65 marks out of a total marks off 100 in a test, what is his percentage score .

2. if i add 2 to a number and then triple the sum , the result is two times what i get when i add 4 to the number what is the number.
3a. simplify

`1 - (2 (1)/(3) * 1 (1)/(4) ) + (3)/(5)`

b Evaluate

`(1)/(3) / ( (5)/(7) ( (9)/(10) - 1 + (3)/(4) )`
in this questions i used BODMAS still its saying I'm wrong pls help .
4. Find the sum of three consecutive even numbers if there mean is 24.
5. The sum of four consecutive odd numbers is 72,find the numbers.
6. if when 4 is added to half a number ,the result is 8 , what is the number?
7. change the expression


`(14)/(13 - 3)`

into words .
8. A customer paid 500 naira after a discount of 10% had been allowed. what was the marked price of the article ?
9. a salesman is paid 5% on his first 50 000 naira sales,10% of the next 30 000 naira and 20% of all sales in excess of 80 000 naira . calculate his commision on sales totalling 100 000 naira .
10. Find the multiplicative inverse of the following of each numbers
a 3
b -2
c 5x
11. find the additive inverse of the following
a. + 0.27
b. + 13
c. -6
That's all .​

Answer 1

1. His percentage score is 65%