Help me... friendsss
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85.
present age =x+3
8 yrs ago =x+3 -8
=x-5 is answer
86.
total angle in triangle =180
180-160=20 is angle
87.
checking options
option c
from pythogreas rule
Ac^2= AB^2+BC^2
10^2 =6^2+8^2
100=36+64
100=100
so 6,8,10 are triplets
88.
cp of 10 articles =sp of 9 articles
reverse the order then
cp=9, sp=10
proft=sp-cp
profit=10-9
profit=1
profit% =profit/cp ×100
=1/9 ×100
100/9 = 11 1/9
= 11 1/9 is answer
present age =x+3
8 yrs ago =x+3 -8
=x-5 is answer
86.
total angle in triangle =180
180-160=20 is angle
87.
checking options
option c
from pythogreas rule
Ac^2= AB^2+BC^2
10^2 =6^2+8^2
100=36+64
100=100
so 6,8,10 are triplets
88.
cp of 10 articles =sp of 9 articles
reverse the order then
cp=9, sp=10
proft=sp-cp
profit=10-9
profit=1
profit% =profit/cp ×100
=1/9 ×100
100/9 = 11 1/9
= 11 1/9 is answer
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