Question

Harish boughly a 2 kg 500g cake .He cut into 10 equal pieces .He ate 2 pieces and gave away 5 pieces. what was the mass of the remaining pieces?​

Answer 1

Total mass of the cake = 2 kg 500 g

= 2500 g

Total pieces = 10

Mass of each piece = 2500/10 g

= 250 g

He ate = 250 × 2 = 500 g

Remaining mass = 2500 - 500 = 2000 g

He gave away 5 pieces = 250 × 5 =1250 g

Remaining mass = 2000 - 1250 g = 750 g

Hence the mass of remaining pieces is 750 g

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Answer 2

Answer:

2kg 500g = 2500g

dividing into 10 equal parts

=2500/10

= 250g

each piece = 250g

used pieces 7

therefore total mass of used cake

= 250 x 7

= 1750

therefore,

remaining mass

= 2500 - 1750

= 750g

there fore remaing mass of cake = 750g

hope it helps.....