How many 60cm long rulers need to be placed end to end to cover 1.5km?

1.	How many 60cm long rulers need to be placed end to end to cover 1.5km?
Answer» 1.5 Km = 1500 m 1 m = 100 cm => 1500 m = 1500 * 100 = 1,50,000 cm So 1 SCALE = 60 cm, then how many scales will EQUAL to 1,50,000 cm PRODUCT of means = Product of Extremes 1 * 1,50,000 = 60 * x => x = 1,50,000 / 60 => x = 2500 Hence 2500 scales of 60 cm each is required to cover a DISTANCE of 1.5 km

Answer»

1.5 Km = 1500 m

1 m = 100 cm

=> 1500 m = 1500 * 100 = 1,50,000 cm

So 1 SCALE = 60 cm, then how many scales will EQUAL to 1,50,000 cm

PRODUCT of means = Product of Extremes

1 * 1,50,000 = 60 * x

=> x = 1,50,000 / 60

=> x = 2500

Hence 2500 scales of 60 cm each is required to cover a DISTANCE of 1.5 km

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How many 60cm long rulers need to be placed end to end to cover 1.5km?

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