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QUESTION
Q
A research lab in Chennai requires 100 mice and 75 sterilized cages for a certain set of laboratory experiments. To identify the mice, the lab has prepared labels with numbers 1 to 100 , by combining tags numbered 0 to 9. The SPCA requires that the tags be made of toxin-free material and that the temperature of the cages be maintained at 27° Celsius. Also,...
Solution
4 in unit’s digit: 4, 14, 24, 34, 44, 54, 64, 74, 84, 94 = 104 in ten’s digit: 40, 41, 42, 43, 44, 45, 46, 47,...
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Single digit: 4 (one possibility)Double digit:4 in unit's place and the ten's digit can be occupied by all the numbers from 0 to 9 except 0. Hence, the possible numbers...
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