Question

Find reduced form of ratio of quantity to quantity 7 minute 20second ,5min 6 sec

Answer 1

7 min 20 sec = 420 + 20 = 440 second

5 min 6 sec = 300 + 6 = 306 second

440 = 2 × 2 × 2 × 5 × 11

306 = 2 × 3 × 3 × 3 × 17

HCF = 2

Required ratio = (440 /2) /(306/2)

= 220 / 153

= 220 : 153