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any tehnique to solve dis 1 quicklyQ.Find the last 2 digits of: 65*29*37*63*63*71*87*85
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@kushalkulll said:
any tehnique to solve dis 1 quickly
Q.Find the last 2 digits of: 65*29*37*63*63*71*87*85

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JCU Singapore 2012 - 2013
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The last two digits are 25

firstly remove the two 5's from 65 and 85 which gives you 5*5=25
Now find out the unit's digit from the multiplication of rest of the numbers which comes out to be 9.
Now 25 multiplied by 9 will always give 25 at the lat two digits..
for ex 25*9=225
25*19=525
25*29=725

Business Management 2013-15 | Shadow Member | IlluminatiX | Media & PR Cell, XIMB
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any tehnique to solve dis 1 quickly

Q.Find the last 2 digits of: 65*29*37*63*63*71*87*85
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