Question: Amrita thinks of a number. She doubles it, adds
, divides her answer by
and finally subtracts
She obtains the same number she originally thought of.
What was Amrita’s number?
Answer: Ste 1: twofold the No. 6*6= 12
Include 6 = 18
Gap by 2 = 9
take away the No you thought first = 9–6 =3
The rationale is basic, at first you have multiplied the No. in sync 3 you are taking out the multiplying in sync 1 by partitioning.
in sync 4 you are again deducting the Actual No., this gives the No 6 alone and as you have separated the 6 in sync 2 the and will be 3 in every case-independent on No.
The rationale is the thing that ever No, you are including stage 2, The Ans will be actually 50% of that.