15% of 180+ x% of 250 =11% of 700. x equals
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15% of 180 + x% of 250 = 11% of 700
=> (15/100×180) + (x/100×250) = (11/100×700)
=> (15×18/10) + (25x/10) = (11×7)
=> 270/10 + (25x/10) = 77
=> 27 + (25x/10) = 77
=> 25x/10 = 77-27 => 50
=> 25x/10 = 50
=> x = 50×10/25
=> x = 500/25 => 20
x = 20%
hope this helps
=> (15/100×180) + (x/100×250) = (11/100×700)
=> (15×18/10) + (25x/10) = (11×7)
=> 270/10 + (25x/10) = 77
=> 27 + (25x/10) = 77
=> 25x/10 = 77-27 => 50
=> 25x/10 = 50
=> x = 50×10/25
=> x = 500/25 => 20
x = 20%
hope this helps
nikku22:
that ans is wrong
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0
first of all 15%of 180+x%of 250=11% of 700.
15%÷180=27
x% ÷250=2.5
now add all ans=27+2.5x=11%÷700=77
2.5x=77-27
so value of x=50÷2.5=2.0
15%÷180=27
x% ÷250=2.5
now add all ans=27+2.5x=11%÷700=77
2.5x=77-27
so value of x=50÷2.5=2.0
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