In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets. (21,66), (32,99) (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits.)
Answer
The correct answer is A: (45,138). In (21,66): 21×3+3=66; in (32,99): 32×3+3=99. Applying the same rule to (45,138): 45×3+3=138.
A.(45,138)✓ Correct
B.(25,81)
C.(36,112)
D.(24,77)
Explanation
In (21,66): 21×3+3=66; in (32,99): 32×3+3=99. Applying the same rule to (45,138): 45×3+3=138. Thus (45,138) follows the same pattern.
💡 Practice unlimited SSC CHSL PYQs + AI-tracked progress on each topic. Sign up free →
Want more SSC CHSL practice?
Free daily 10-Q quiz · adaptive mocks · 49,000+ practice questions (19,000+ verified PYQs) · AI doubt solver in Hindi + English