4. If the digit 1 is placed after a two digit number
whose ten's digit is t and unit's digit is u, the
new number is:
(a) 101 + 0 +1
(b) 100t + 10 + 1
(c) 1000t + 10u + 1
(b) i+u+1
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Answer:
I think it is i+u+1 Hope it will help you
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