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Ram Lal, a shop owner increased the price of an item by 70% which causes a reduction in monthly sale by 30%. Then find the correct statement(s) from the above data. a) The total sale value decreased by 1%. b) The total sale value increased by 19%. c) The total sale value decreased by 10%. Choose the correct option(s)

Ram Lal, a shop owner increased the price of an item by 70% which causes a reduction in monthly sale by 30%. Then find the correct statement(s) from the above data. a) The total sale value decreased by 1%. b) The total sale value increased by 19%. c) The total sale value decreased by 10%. Choose the correct option(s) Correct Answer Only b

Given∶

Price increased by 70%. 

Reduction in monthly sale by 30%.

Formula Used∶

Basics of percentage.

Net % effect = %

Increase or decrease, according to the positive or negative sign respectively.

Calculation∶

Increased price = x = 70%

Decreased price = y = 30%

By using the formula of net % effect, we get

⇒

  %

⇒

  %

⇒

 19%

positive sign shows increasement.

∴ The total sale value increased by 19%. So option 2 is correct.

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