Three years ago the average age of A and B is 18yrs. With the joining of C now, the average becomes 22 yrs. How old is C now?
A24 years
B30 years
C28 years
D27 years
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തുടർച്ചയായി നാല് എണ്ണൽ സംഖ്യകളുടെ ആകെത്തുക 154 ആണ്. ഏറ്റവും ചെറിയ സംഖ്യ കണ്ടെത്തുക.
തുടർച്ചയായ അഞ്ച് ഒറ്റ സംഖ്യകളുടെ ശരാശരി 61 ആണ് . ചെറുതും വലുതുമായ സംഖ്യകൾ തമ്മിലുള്ള വ്യത്യാസം എന്ത് ?