Q. The letters from A to Z are numbered from 1 to 26 respectively. If GHI = 1578 and DEF = 912, then what is ABC equal to?
(a) 492
(b) 468
(c) 262
(d) 246
Correct Answer: (d) 246
Question from UPSC Prelims 2020 CSAT Paper
Explanation :
GHI = 1578 and DEF = 912
When alphabets are numbered, then:
GHI = 789
DEF = 456
ABC = 123
According to the question,
GHI = 1578 = 789 × 2
DEF = 912 = 456 × 2
ABC = 123 × 2 = 246
