Question

Find the value of x if (i) 8% of Rs x is Rs 100 (ii) 32% of x kg is 400 kg (iii) 35% of Rs x is Rs 280 (v) 45% of marks x is 405.

Answer 1

(i)8/100×x=100
=0.08×x=100
x=100/0.08= Rs1250

(ii)32/100×x=400
=0.32×x= 400
x=400/0.32= 1250kg

(iii)35/100×x=280
=0.35×x= 280
x=280/0.35= Rs800

(iv)45/100×x=405
=0.45×x=405
x=405/0.45= 900marks

Answer 2

(i)8/100xx=100 =0.08x=100 x=100/0.08= Rs1250

(ii)32/100xx=400 =0.32xx= 400 x=400/0.32= 1250kg

(iii)35/100xx=280 =0.35xx= 280 x=280/0.35= Rs800

(iv)45/100xx=405 =0.45xx=405 x=405/0.45= 900marks

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