Select the set in which the numbers are related in the same way as are the numbers of the following set.
3 — 20 — 7
5 — 26 — 8
NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
SSC CGL Reasoning – 17 September 2024 exam paper
Options:
a) 8 — 28 — 6
b) 17 — 20 — 13
c) 18 — 70 — 6
d) 5 — 20 — 8
Solutions:
Logic: (First term + Last term) x2 = Middle term
3 — 20 — 7 => (3+7)x 2=20
5 — 26 — 8 => (5+8)x 2=26
Use same logic in options :
Options:
a) 8 — 28 — 6 => (8+6)x 2= 28
b) 17 — 20 — 13 =>(17+13)x2=60
c) 18 — 70 — 6 => (18+6)x 2=48
d) 5 — 20 — 8 => (5+8)x 2 =26
Only option a) 8 — 28 — 6 => (8+6)x 2= 28 follow the logic, hence correct answer.