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P6 Mathematics

Question post on Mon, 11/06/2018 8:14pm

A piece of rope is cut into two smaller pieces, with one piece 90 cm longer than the other . The shorter piece is cut into strips of 20 cm each. The are 20 more strips of 15 cm than20 cm altogether. What is the length of the original piece of rope ?

Answer

Swift Formula · Answer 1 · Post on Sat, 16/06/2018 12:42am

Something missing in the question.
Maybe the 90 cm longer piece, is cut into strips of 15 cm each?

Khong Pek Mao · Answer 2 · Post on Mon, 11/06/2018 8:34pm

This is a Quantity Each Product question.

	Quantity	Each	Product
Short	1u	20	20u
Long	1u + 20	15	15u + 300
			30u + 300

15u + 300 = 20u + 90

300 – 90 = 20u – 15u

5u = 210

1u = 210 ÷ 5 = 42

30u = 42 ×30 = 1260

1260 + 300 = 1560 cm

UmaPraha · Answer 3 · Post on Mon, 11/06/2018 9:18pm

UmaPraha Post on Mon, 11/06/2018 9:18pm

Each short piece is 15 cm length. We tried your method and got solution

UmaPraha · Answer 4 · Post on Mon, 11/06/2018 9:18pm

UmaPraha

Post on Mon, 11/06/2018 9:18pm

Each short piece is 15 cm length. We tried your method and got solution