question_answer

What is the least number which when diminished by 5, is divisible by each one of 21, 28, 36, 45?

A) 425

B) 1259

C) 1260    

D) 1265

Correct Answer: D

Solution :

[d] Required number = (LCM of 21, 28, 36, 45) + 5 \[=(3\times 3\times 7\times 4\times 5)+5\] \[=(1260+5)=1265\]