‘Idli’ is said for multiples of 3 (30 times), ‘vada’ for multiples of 5 (18 times), and ‘idli-vada’ for multiples of both (6 times). Total repetitions depend on overlaps.
Class 6 Mathematics Ganita Prakash Prime Time
Class 6 Mathematics Chapter 5 Prime Time question answer
In the game, ‘idli’ is said for multiples of 3, which occur 30 times from 3 to 90. ‘Vada’ is said for multiples of 5, totaling 18 times. Numbers like 15, 30, 45, 60, 75, and 90 overlap both categories, so ‘idli-vada’ is said 6 times for these multiples. Since ‘idli’ and ‘vada’ overlap, the total unique calls differ depending on whether these overlaps are included in both counts.
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