Question
If '63a9b' is a five-digit number which is divisible by
72, then find the value of (a + 2b).Solution
We are given 63a9b is divisible by 72, so it must be divisible by 8 and 9. Divisible by 8 → last 3 digits (a9b) must be divisible by 8 Try values → a = 7, b = 2 gives 792, and 792 ÷ 8 = 99 ✅ Divisible by 9 → sum of digits: 6 + 3 + 7 + 9 + 2 = 27, which is divisible by 9 ✅ So the number is 63792 → a = 7, b = 2 → a + 2b = 7 + 4 = 11
In a certain code language, ‘ PLANT ’ is coded as '85139' and 'DEEP’ is coded as ‘2668’ . How will ‘DEPEND’ be coded in that language?
...In a certain code language ‘ROCKET’ is written as ‘FMSNJG’. How is ‘ ROBBER ’ written in that code language?
...If ‘ELEMENT’ is coded as ‘EELMNET’, then ‘ EXPLAIN ’ will be coded as?
In a certain code language ‘LARGE’ is written as ‘BMRFH’ and ‘CUPID’ is written as ‘VDPEJ’. How is &lsqu...
- In a certain code language, ‘GLASS’ is coded as 20 and ‘SUGAR’ is coded as 8. How will ‘CRISP’ be coded in that language?
In a certain code language ‘LAUGHTER’ is written as ‘BFHIMUVS’ , then what will be the code for the word ‘PLACEMENT’ in this language?
...If ENTRY is coded as 98462 and STEADY is coded as 749312, the how is NEATNESS written in that code?
In a certain code language, ‘312914’ is related to 'CABIN' in the same way ‘1821191991’ is related to which of the following words?
...In a certain code language, ‘PARAMOUNT’ is coded as ‘SDUDNMSLR’ then, what is the code for ‘MESSENGER’ in the same code language?
...If in a certain code, 'SUMMIT' is written as 'KSQRGK', then how will 'UMPIRE' be written in that code?
