हल:
96 = 2⁵ × 3
120 = 2³ × 3 × 5
160 = 2⁵ × 5
अतः,
LCM (96, 120, 160)
= 2⁵ × 3 × 5
= 32 × 3 × 5
= 480
अब,
72 = 2³ × 3²
168 = 2³ × 3 × 7
अतः,
HCF (72, 168)
= 2³ × 3
= 8 × 3
= 24
इसलिए,
(96, 120 और 160 का LCM) ÷ (72 और 168 का HCF)
= 480 ÷ 24
= 20
अतः सही उत्तर = 20


