Question

answer rounded questions​

Answer 1

Ans. 28) MP = Rs. 800

              SP = Rs. 680

hence, Discount % = (800-680)*100/800 = 15 %  

Correct option is 2) 15 %

Ans. 29) Correct option is 1) 465

Ans, 33) Rectangular piece is 11 cm * 4 cm

   Height of cylinder, h = 4 cm

     Circumference of cylinder = length of paper piece

        2πr = 11

hence, 2*22*r/7 = 11

          r = 7/4 = 1.75 cm

Hence , volume = πr^2h

= 22*49*4/7*16 = 38.5 cm^3

hence, correct option is 4) 38.5 cm^3