Question

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Answer 1

26.

( a, b) d.p (3,4)---->

$\frac{a}{3 } = \frac{b}{4} = k$

---> a=3k b=4k

a+b=35

3k+4k=35

7k=35

k=35:7=5----->a=3×5=15 b=4×5=20

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27.

(x,y)ip(2,3) =k ---> x=2k y=3k

x+y=25

2k+3k=25

5k=25

k=25:5

k=5

x=5×2=10

y=5×3=15