Question

madhuri went to a supermarket the price changes as follows. the price of rice reduced by 5% jam and fruits reduced by 8% and oil and dal increased by 10%. help madhuri to find the changed prices prices
rice rs 30, jam rs 100,applesrs 280,oil rs 120, dal rs 80

Answer 1

Step-by-step explanation:

percentage of cost of rice decreased = 5%

rice cost before change = 30 rupees

decrease cost of rice = 5/100×30

=1.5 rupees

new cost of rice = 30-1.5=28.5 rupees

percentage of cost of jam decreased = 8%

jam cost before change = 100 rupees

decrease cost of jam = 8/100×100

=8 rupees

new cost of jam = 100-8=92 rupees

percentage of cost of fruits decreased = 8%

apples cost before change =280 rupees

decreased cost of apples,=8/100×280

=22.4 rupees

new cost of apples = 280-22.4=257.6 rupees

percentage of cost of oil increased = 10%

cost before change= 120 rupees

increased price of oil = 10/100×120

=12 rupees

new cost of oil = 120+12=132 rupees

percentage of cost of dal increased = 10%

cost before change = 80 rupees

increased cost of dal = 10/100×80

=8 rupees

new cost of dal = 80+8=88 rupees

Answer 2

Step-by-step explanation:

the price of rice reduced by 5% jam and fruits reduced by 8% and oil and dal increased by 10%. help madhuri to find the changed prices prices rice rs 30, jam rs 100,applesrs 280,oil rs 120, dal .

$</p><p></p><p>i) Rice</p><p></p><p>C.P=30+(−1005)×30=30−0.5=Rs.29.5</p><p></p><p>ii) Jam</p><p></p><p>C.P=100+(−100 \\ ×100=100−8=Rs.92</p><p></p><p>iii) Apples</p><p></p><p>C.P=280+(−1008 \\ ×280=280−22.4=Rs.257.6</p><p></p><p>iv) Oil</p><p></p><p>C.P=120+(10010)×120=Rs.132</p><p></p><p>v) Dal</p><p></p><p>C.P=80+(10010)×80=Rs.88</p><p></p><p>$