STUCK ON HOMEWORK?

Question

Question

P5 Mathematics

Question post on Tue, 18/04/2017 10:12pm

Please help

Source: Nanyang Primary

siglapmath · Answer 1 · Post on Wed, 19/04/2017 9:26pm

siglapmath · Answer 2 · Post on Wed, 19/04/2017 9:26pm

siglapmath

Post on Wed, 19/04/2017 9:26pm

alfretztay · Answer 3 · Post on Thu, 11/05/2017 3:37pm

7u ——- 21/5 (length)
1u ——- (21/5)/7 = 21/35
5u ——- (21/35) x 5 = 21/7 = 3 (breadth)
(1/4) x (21/5) x 3 = 63/20 = 3 3/20

Ans : 3 3/20 sq m.

SAHMom · Answer 4 · Post on Tue, 18/04/2017 10:58pm

Area painted

= 1/4 x area of rectangle

= 1/4 x (L) x (B)

= 1/4 x (21/5) x (5/7 x 21/5)

= 3×21/ (4×5)

= 3 3/20 sq m