Mahesh thinks of a number. If he takes away 7 from

is 23. Find the number.


a) 10 b)20 c)12 d) 35​

2 thoughts on “Mahesh thinks of a number. If he takes away 7 from<br /><br />is 23. Find the number.<br /><br /><br />a) 10 b)20 c)12 d) 35​”

1. Answer:

   Step-by-step explanation:

   Let the number Mahesh thinks be x,

   Then,

   x-7=23

   x=23+7

   x=30

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2. Given :

   • If Mahesh takes away 7 from the number it is 23.

   To find :

   • find the number

   Solution :

   • Let the number that Mahesh thinks be x.
   • Now, in the question, it is given that if he takes 7 from the number it will be 23. So, accordingly, let’s write the equation.

   ⇒ x – 7 = 23

   • Next, let’s find the answer by the Transposition method. When we use the Transposition method, the arithmetic operation changes.

   ⇒ x = 23 + 7

   • Now, we have to add the numbers.

   ⇒ x = 30

   • And therefore, the number is 30.

   ⇔ Verification~

   x – 7 = 23

   30 – 7 = 23

   23 = 23

   Hence, verified!!

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