Question

3 What is the number?
i Twice a number is equal to 40.
ii Five times a number is equal to 30.
iii Half of a number is 16.
iv Eight times a number is 32.
v I thought of a number. If I multiply this number by 9, the number will be 117




pls answer these question I will mark them as brain list 2hich answers first​

Answer 1

Answer:

1. 20
2. 6
3. 8
4. 4
5. 13

Hope it helps you

Answer 2

Answer:

i. Let the required number be x.

 According to the question,

 2x= 40

 x = 40/2

 x = 20

ii. Let the number be y.

  According to the question,

  5y = 30

  y = 30/5

  y = 6

iii. Let the number be n.

   According to the question,

   = 1/2 of n = 16....(equation)

  = 1/2 × n = 16

  = n/2 = 16

   = n = 16×2 = 3

iv. Let the required number be 'm'.

    According to the question,  

    8 × m = 32

    m = 32/8

    m = 4

v.  Let no. be z.

   According to the question,

=> 9 × z = 117

=> 9z = 117

=> z = 117/9

=>  z = 13