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The IUPAC name of the compound CH₃-CH₂-CH₃ is propane
Sum of digits of a two-digit number is 9. When 27 is subtracted from the number, its digits get reversed. Find the original number.
What is the largest three-digit number that, when divided by both 13 and 17, leaves a remainder of 12 in each case?
In a class, the present students are in the ratio of boys to girls as 4:1. If 10 girls are absent and they form 10% of the total class strength, and no ...
A Student was asked to add 8 and subtract 5 from a number. By mistake, he added 5 and subtracted 8. If his answer is 11, what should be the correct answer?
If '3849x' is a five digit number which is divisible by 91, then find the value of 'x'.
Sum of squares of three consecutive numbers is 1589. Find the sum of first and third number.