Question

form and equation and solve​

Answer 1

Answer:

a. let the number be x

therefore three times the number = 3×x = 3x

according to the question, the equation is

3x= 60

x=60/3

x = 20

hope it helps you...

Answer 2

Answer:

a) 20    b) Rs 18    c)45    d) 20

Step-by-step explanation:

a) let the number be x.

now, a/q

3x= 60

=> x= 60/3

=> x= 20

so the req. number is 20.

b) cost of 5 pen = Rs 90

cost of one pen = Rs 90/5

cost of 1 pen= Rs18

hence one pen costs Rs 18 .

c) let the number be x.

then,

2/3 of x = 30

=> 2/3x = 30

=> x = 30 × 3/2

=> x = 45

so, the required number is 45 .

d) Let the no. be x

Then,

3/4 of x = 15

=> 3x = 15*4

=> 3x = 60

=> x = 60/3

=> x = 20.

so, the required number is 20.