Answer :
We have to use proportion
92% -------------69
100% -----------x
x=69*100:92=75
20% ---------------3.4
100% --------------x
x=100*3.4:20=17
10% -------------80
100% -----------x
x=100*80:10=800
4% ------------------25
100% --------------x
x=100*25:4=625
92% -------------69
100% -----------x
x=69*100:92=75
20% ---------------3.4
100% --------------x
x=100*3.4:20=17
10% -------------80
100% -----------x
x=100*80:10=800
4% ------------------25
100% --------------x
x=100*25:4=625
1) 92%of x=69
92/100 of x=69
0.92x=69
x=69/0.92
x=75
2) 20% of x=3.4
20/100 of x=3.4
0.2x=3.4
x=3.4/0.2
x=17
3)10% of x=80
10/100 of x=80
0.1x=80
x=80/0.1
x=800
4) 4% of x=25
4/100 of x=25
0.04x=25
x=25/0.04
x=625.............
92/100 of x=69
0.92x=69
x=69/0.92
x=75
2) 20% of x=3.4
20/100 of x=3.4
0.2x=3.4
x=3.4/0.2
x=17
3)10% of x=80
10/100 of x=80
0.1x=80
x=80/0.1
x=800
4) 4% of x=25
4/100 of x=25
0.04x=25
x=25/0.04
x=625.............
