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What should come in place of the question mark (?) in the following questions?

?% of 280 + 18% of 550 = 143.8 (a) 11 (b) 18 (c) 21 (d) 16 (e) None of these

  • Deepshikha
  • 23378 Views
  • 533 Answers
533 Answers
  • d) 16br / 


  • 18%


  • Trick to calculate these question fast. 10% of 550= 55 1% of 550= 5.5 To calculate 18% = 20% -2% I.e 55*2 -11= 99 x% of 280= 143.8-99 x% of 280= 44.5 This eq can be solved easily or even we can do estimate 10% of 280= 28 5%of 280= 28/2= 14 1%of 280= 2.8 Adding them give you 44.8= 16% Hence the answer is 16%


  • 16


  • (d) 16


  • 16


  • 16


  • 16%br / 


  • Step1 ) 18% of 550 is 99br /Step2) 143.8 - 99 is 44.8br /Step3) 44.8/280 is 0.16 br /Step4) since we are dividing by a percentage we multiply by 100 hence the answer is 16.


  • 16


  • 16


  • 16


  • D


  • d)16


  • e


  • D


  • 143.8-(18% of 550)=44.8 so 16% of 280 =44.8 option (d) is correct


  • 16


  • 16


  • e


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