Question

7. A number increased by 20% gives 42. The number is ​

Answer 1

Answer:

$\huge \boxed{ \red{35}}$

Step-by-step explanation:

Let the required number be x

Now,

= x + 20% of x = 42

= [x + {(20/100) × x}] = 42

= [x + {20x/100}] = 42

= [x + {x/5}] = 42

= [(5x + x)/5] = 42

= [6x/5] = 42

= x = (42 ×5)/6

= x = (7 × 5)

= x = 35

Answer 2

Answer:

35

Step-by-step explanation:

As the given number is obtained by increased 20% from initial, now that is represented as

42 = (100+20)% = 120 %

so now the initial number is = 42 x 100 / 120

= 4200/120

= 35